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Corporate Debt: Historical Perspective and Options for Reducing Interest Deductibility

Summary: While corporations are at historically high levels of debt relative to assets, leverage remains close to its historical average relative to firms’ market value and relative to interest expense as a fraction of cashflow. In PWBM’s dynamic firm model, reducing the deductibility of interest expenses by 10 percentage points decreases corporate output by 0.26 percent while decreasing corporate debt by 6.76 percent.

Key Points

  • Corporate debt relative to assets is at historically high levels. In 2020Q3, the ratio of corporate debt assets was 68 percent for book value, 49 percent for fixed assets, and 56 percent for tangible assets. For the period 1960 to 2019, the average corporate debt to asset ratios were 43 percent for book value, 40 percent for fixed assets, and 44 percent for tangible assets.

  • Corporate debt relative to the market value of the firm, however, is close to its historical average. The market leverage ratio was 23 percent in 2020Q3, versus a 34 percent average for the period 1960 to 2019. The interest coverage ratio, which measures the ratio of earnings before interest and taxes to interest expense, was also high at 6.88 in 2020Q3 versus an average of 5.92 for the period 1960 to 2019.

  • Current law allows for 92 percent of interest expenses to be deducted from corporate taxes. Using PWBM’s dynamic firm model, we find that a 10 percentage point reduction in deductibility decreases capital and labor usage by the firm by 0.26 percent and causes corporate debt to decline by about 7 percent.


Corporate Debt: Historical Perspective and Options for Reducing Interest Deductibility

Corporations raise capital for investment from (a) retained earnings, (b) borrowing/debt issuance, and (c) equity issuance. In the United States, debt financing has the advantage of a tax benefit to the corporation from the deduction of interest paid. This tax benefit of debt is one explanation for the size of debt chosen by corporations. Higher debt ratios relative to underlying corporate value can put the firm at greater risk of defaulting on its debt obligations. To offset this risk, lenders demand higher interest rates. Firms in PWBM’s dynamic model calculate their optimal choice of debt leverage based on that trade-off between the tax benefit of debt and higher costs of more debt.

Historical debt

Business debt financing comes from borrowing directly from financial institutions and from issuing corporate bond securities in capital markets. Debt raised from capital markets varies significantly in its repayment structures and maturity. Commercial paper debts are short-term loans provided by banks with a maturity of less than 270 days, while corporate bonds usually have a maturity greater than one year. Terms of debt vary widely, including debt convertible into equity and government-backed loans such as industrial revenue bonds issued by state and municipal governments to finance private investment. In the previous year, corporations have issued more debt and at longer maturities: U.S. corporate bond issuance was $2.28 trillion in 2020 versus $1.42 trillion in 2019, and the average maturity at issuance was 17.6 years in 2020 and 17.1 years in 2019. Figure 1 shows the different components of business debt and their changing importance over time.

Figure 1. Historical composition of corporate debt.

Billions of Dollars

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Debt leverage is the amount of debt outstanding divided by the assets of the firm. Higher leverage implies higher risk to the lender due to increased uncertainty about recovery in case of default. When interest rates are fixed, more debt also implies larger interest payments by the firm and a higher probability that the firm will be unable to make the contracted payments—that is, a higher risk of default.

Total debt is the sum of commercial paper, corporate bonds, municipal securities,1 loans from depository institution loans, mortgages and other loans and advances. Different measurements of the leverage ratio depend primarily on the denominator used: fixed asset value, tangible asset value, book value, or enterprise value. Fixed assets are the sum of equipment, real estate, and intellectual property products.2 Tangible assets only include real estate and equipment. Book value is the difference between a corporation’s total assets (including financial assets) and total liabilities, so the book value is effectively the liquidation value of the assets of the business.

Leverage can also be assessed from enterprise value or capital, which is defined as the sum of the value of debt and equity. The resulting leverage ratio of debt over capital is sometimes referred to as market leverage.3 Figure 2 shows the different leverage ratios for the period 1949 to the present for nonfinancial corporate business sectors using aggregate data from the Federal Reserve’s Financial Accounts.

Figure 2. Historical corporate leverage ratios.

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Debt-to-Assets and Debt-to-Tangible Assets have very similar trends. These two measures of leverage both remained relatively low and stable from 1960 to 1980 but then increased significantly from 1980 to 2000. During the 1980 to 2000 period, nonfinancial corporate bond issuance rose more than other forms of debt. The gap between these two measures of the leverage ratio is relatively small, typically less than 3 percent before the 1990s but increasing to more than 5 percent afterwards due to the growing value of intellectual property such as software. From 2000 to the global financial crisis (2007-2009), nonfinancial corporations entered a period of deleveraging. Leverage ratios dropped from around 60 percent to around 45 percent. The financial crisis was a turning point for corporate borrowing as leverage ratios began to rise past levels last seen in the 1990’s with leverage measured by book value reaching an all-time high of 69 percent in 2020.

The Debt-to-Capital leverage ratio follows a very different path. This ratio held steady until the early 1970’s, when it rose quickly to levels above 40 percent. This regime lasted until 1990, when Debt-to-Capital began to decline steadily, reaching a low of about 24 percent in 2000. The ratio remained low over the next two decades, with a notable spike during the financial crisis.

The disconnect between the asset ratios and market leverage started in 1990, as the market value of equity began rising faster than the market value of debt (see Figure 3). In 2020, leverage based on more physical measures (book value and tangible assets) is at historically high levels while leverage on the basis of enterprise value is near historic lows.

Figure 3. Historical value of corporate debt and equity.

Billions of Dollars

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The firm’s debt obligations are determined by both the size of the firm’s debt and the level of interest rates. Declining interest rates since 1980 (see Figure 4) have implied a lower cost of corporate borrowing and may justify a higher leverage ratio for a comparable level of risk. A large existing stock of debt, however, puts the firm at higher risk of default if interest rates increase and the firm borrows at higher rates to refinance.

Figure 4. Comparison of historical leverage (fixed asset and enterprise value) versus historical bond interest rates.

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The interest coverage ratio (ICR) measures earnings before interest and taxes over interest expense. This ratio quantifies a company’s ability to fulfill its debt obligation. A higher ratio implies that the company is generating enough cash to cover its interest payments, and therefore, faces a lower probability of default. Figure 5 shows that, although the ICR fell from 1960 to 1970, it stayed relatively stable from 1970 onwards. In 2020, the ICR is near the high of the period since 1970, implying debt payment is not a large burden to corporations.

Figure 5. Historical comparison of interest coverage ratio (ICR) to corporate bond interest rates.

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Leverage choice model

There are three main theories of a firm’s debt-equity choice.

  1. Tradeoff: Given that the U.S. tax system allows corporations to deduct their net interest expenses, tradeoff theory says that a firm chooses its debt to maximize tax benefits net of the costs of possible financial distress.

  2. Pecking order: The pecking order theory predicts that to fund capital investment, a firm would first use internal sources of finance, then turn to borrowing, and finally resort to issuing equity. This effect is driven by information asymmetry where investors infer from the manager’s decision to issue equity that the shares are overvalued. Given that debt has a priority claim, an announcement of debt issuance exerts a smaller downward pressure on a firm’s stock price compared to equity issuance. As a result, a manager whose objective is to maximize shareholder value would only raise funds through equity when debt becomes too costly.

  3. Free cashflow: The free cashflow theory highlights agency costs and considers debt as a way to discipline managers from overinvesting and motivate them to generate and pay out cash instead.

Other theories look at the effect debt has on stock-based compensation of managers, as higher leverage implies higher value to stock-options.

The PWBM dynamic model uses tradeoff theory to reproduce the firm’s choice of debt. We impose a non-linear leverage cost function which increases the cost of borrowing as leverage rises and calibrate the function to match data on corporate credit spread and corporate interest expense.

Changes of interest deductibility

Under the tradeoff model, the leverage ratio of a firm decreases when the corporate tax rate and interest rate are lower. The deductibility of interest income also affects the benefit of corporate borrowing and so provides a direct policy lever to affect the leverage ratio. According to the PWBM tax model, the average deductible share of corporate net interest expense is 92 percent in 2021.4 Table 1 shows the effects of either a 5 or 10 percentage point reduction in interest deductibility on the capital stock, labor demand, free cash flow, debt and interest paid of the nonfinancial corporate sector under various interest rate scenarios.

Lower deductibility has the direct effect of raising corporate tax liability and so reducing free cash flow. Economies at higher interest rates show larger percentage effects from the policy change. Under all interest rate assumptions, corporate capital stock and labor demand both decline, though both effects are relatively small. Debt issued by the firm also declines as the tax benefit of additional debt is lower, which reduces the probability of default, and therefore, decreases the corporate credit spread and interest payments by the firm.

Table 1. Reduction by 5 percent in the average deductible share of net interest expense. Percentage changes relative to current policy economy.

Percent change relative to current law

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Interest rate Capital stock Labor demand Free cash flow Debt Interest paid
1 -0.13 -0.13 -0.12 -3.38 -3.83
3 -0.13 -0.13 -0.13 -3.38 -3.83
5 -0.13 -0.13 -0.16 -3.38 -3.83
7 -0.13 -0.13 -0.22 -3.37 -3.82

Table 2. Reduction by 10 percent in the average deductible share of net interest expense. Percentage changes relative to current policy economy.

Percent change relative to current law

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Interest rate Capital stock Labor demand Free cash flow Debt Interest paid
1 -0.26 -0.26 -0.22 -6.76 -7.62
3 -0.26 -0.26 -0.26 -6.76 -7.62
5 -0.26 -0.26 -0.33 -6.77 -7.62
7 -0.26 -0.26 -0.44 -6.76 -7.61

These results indicate that reduction of interest deductibility is likely to have less than a 1 percent effect on capital, labor demand, and firm earnings. At the same time, lower benefits to borrowing reduce corporate debt by about 3.4 percent for a 5 percentage point reduction in deductibility and by about 6.8 percent for a 10 percentage point reduction in deductibility. Historical measures do not give a clear signal that the corporate sector is over-leveraged, but our analysis implies that reducing the deductibility of interest may reduce corporate leverage with relatively small costs on the production sector.



This analysis was conducted by Zheli He and Xiaoyue Sun. Prepared for the website by Mariko Paulson.


  1. Municipal securities are issued by state and local governments to finance private investment and are secured in interest and principal by the industrial user of the funds. Detailed data source: https://www.federalreserve.gov/apps/fof/SeriesAnalyzer.aspx?s=FL103162000&t=B.103&suf=Q.  ↩

  2. Assets are measured at market value.  ↩

  3. Graham et al. (2015) define capital as the sum of interest-bearing debt and book value of equity. Frank and Goyal (2008) bring up the issue of whether to examine book leverage (debt divided by total assets) or market leverage (debt divided by the sum of book debt plus the market value of equity).  ↩

  4. PWBM estimates the interest deductibility share to be 86 percent in 2026 under current law.  ↩

  Year,Commercial Paper,Corporate Bonds,Depository Institution Loans NEC,Municipal Securities,Other Loans And Advances,Total Mortgages
  1952 Q1,0.328,40.873,21.916,0,3.265,13.385
  1952 Q2,0.304,42.343,21.494,0,3.369,13.26
  1952 Q3,0.346,43.47,21.955,0,3.506,13.251
  1952 Q4,0.331,44.497,22.979,0,3.827,13.464
  1953 Q1,0.37,45.257,23.076,0,4.046,13.756
  1953 Q2,0.297,46.27,22.71,0,4.381,13.696
  1953 Q3,0.347,46.8,23,0,4.43,13.761
  1953 Q4,0.402,48.012,22.417,0,4.279,14.142
  1954 Q1,0.525,48.789,22.093,0,4.34,14.418
  1954 Q2,0.484,49.724,21.445,0,4.213,14.285
  1954 Q3,0.584,50.999,21.273,0,4.095,14.216
  1954 Q4,0.531,51.547,21.761,0,4.368,14.636
  1955 Q1,0.5,52.055,22.121,0,4.109,14.935
  1955 Q2,0.38,52.779,22.865,0,4.234,15.128
  1955 Q3,0.371,53.253,23.814,0,4.08,15.355
  1955 Q4,0.362,54.564,25.662,0,4.433,16.195
  1956 Q1,0.362,54.986,27.113,0,4.715,16.428
  1956 Q2,0.289,55.946,28.607,0,4.609,16.531
  1956 Q3,0.401,57.013,29.331,0,4.398,16.614
  1956 Q4,0.378,58.04,30.747,0,4.67,17.126
  1957 Q1,0.353,59.51,30.873,0,5.18,17.628
  1957 Q2,0.32,60.975,32.125,0,5.22,17.697
  1957 Q3,0.364,62.488,31.811,0,5.354,17.806
  1957 Q4,0.422,64.072,31.971,0,5.73,18.437
  1958 Q1,0.716,65.937,30.808,0,6.185,18.711
  1958 Q2,0.791,67.017,30.687,0,5.841,18.935
  1958 Q3,0.795,68.463,30.474,0,5.335,19.211
  1958 Q4,0.658,69.715,31.65,0,5.758,20.184
  1959 Q1,0.652,70.307,31.437,0,6.248,20.206
  1959 Q2,0.458,71.169,33.407,0,6.655,20.235
  1959 Q3,0.527,71.737,34.014,0,6.412,20.208
  1959 Q4,0.315,72.794,35.439,0,7.088,21.009
  1960 Q1,0.427,73.216,35.977,0,8.149,20.971
  1960 Q2,0.547,74.107,36.856,0,8.811,21.08
  1960 Q3,0.782,74.889,36.543,0,8.402,21.305
  1960 Q4,0.769,76.216,37.651,0,9.131,21.825
  1961 Q1,0.623,76.577,37.641,0,8.942,21.744
  1961 Q2,0.726,78.53,37.343,0,9.061,22.031
  1961 Q3,1.017,79.237,37.134,0,8.712,22.266
  1961 Q4,1.094,80.611,38.585,0,9.454,23.243
  1962 Q1,1.131,81.437,38.089,0,9.53,23.576
  1962 Q2,1.092,82.981,39.474,0,9.68,23.993
  1962 Q3,1.363,83.558,40.045,0,9.268,24.488
  1962 Q4,1.198,84.643,42.226,0,9.836,25.563
  1963 Q1,1.214,85.579,41.735,0,10.253,25.95
  1963 Q2,0.987,86.695,42.769,0,10.562,26.527
  1963 Q3,1.111,87.225,43,0,10.195,27.162
  1963 Q4,0.968,88.414,45.623,0,10.942,28.236
  1964 Q1,0.948,89.091,45.036,0,11.799,28.826
  1964 Q2,0.889,90.362,46.688,0,12.414,29.346
  1964 Q3,1.081,91.058,47.295,0,12.296,30.17
  1964 Q4,1.125,92.408,50.264,0,12.685,31.443
  1965 Q1,0.847,93.342,52.461,0,13.442,32.181
  1965 Q2,0.727,94.941,55.467,0,14.108,32.609
  1965 Q3,0.926,96.634,56.66,0,13.777,33.139
  1965 Q4,0.797,97.26,61.141,0,14.894,34.101
  1966 Q1,0.82,100.223,62.119,0,15.76,34.688
  1966 Q2,0.861,102.79,66.583,0,16.261,35.819
  1966 Q3,1.466,105.223,67.759,0,15.365,36.783
  1966 Q4,1.622,107.474,69.715,0,16.422,37.691
  1967 Q1,2.677,110.617,70.151,0,16.93,38.277
  1967 Q2,3.242,114.236,73.315,0,16.578,38.646
  1967 Q3,3.264,118.745,72.504,0,16.088,38.941
  1967 Q4,3.034,122.132,76.269,0,16.575,37.235
  1968 Q1,3.482,124.734,75.965,0,17.656,40.657
  1968 Q2,3.4,128.262,79.707,0,17.958,40.874
  1968 Q3,4.928,131.563,80.255,0,17.507,41.4
  1968 Q4,4.249,135.025,86.106,0,18.296,42.399
  1969 Q1,4.88,138.462,87.278,0,19.325,43.212
  1969 Q2,4.914,141.743,91.765,0,22.533,42.775
  1969 Q3,5.778,144.467,91.186,0,25.853,42.572
  1969 Q4,5.356,147,95.655,0,27.575,43.292
  1970 Q1,7.044,150.069,93.524,0,31.125,56.458
  1970 Q2,6.895,155.797,96.837,0,33.716,57.3
  1970 Q3,7.361,161.157,98.636,0,30.461,58.499
  1970 Q4,7.133,166.756,101.697,0,28.035,59.762
  1971 Q1,8.333,172.222,99.687,0,28.661,60.905
  1971 Q2,6.856,177.621,102.607,0.02,30.091,62.021
  1971 Q3,7.434,181.204,104.363,0.053,29.81,62.941
  1971 Q4,6.247,185.563,106.157,0.086,29.248,64.936
  1972 Q1,7.538,188.338,106.744,0.126,30.562,68.012
  1972 Q2,8.126,192.15,110.749,0.293,30.838,69.436
  1972 Q3,7.761,195.187,112.568,0.466,30.46,71.312
  1972 Q4,6.968,197.75,119.174,0.634,33.116,74.173
  1973 Q1,5.871,199.202,126.7,0.955,35.284,76.383
  1973 Q2,6.032,202.249,131.863,1.49,37.122,82.945
  1973 Q3,6.335,204.906,132.131,1.979,39.101,93.859
  1973 Q4,8.382,206.909,134.126,2.43,40.752,104.837
  1974 Q1,9.235,210.614,137.548,2.841,43.064,106.81
  1974 Q2,9.967,216,147.98,3.265,44.885,107.401
  1974 Q3,12.569,220.192,151.507,3.596,46.427,104.607
  1974 Q4,12.513,226.579,156.066,4.078,50.091,103.738
  1975 Q1,14.009,236.009,147.759,4.508,50.686,103.9
  1975 Q2,11.658,244.281,145.314,5.319,51.207,105.015
  1975 Q3,11.78,247.958,141.12,5.92,51.417,106.682
  1975 Q4,9.616,253.783,141.944,6.678,52.7,107.945
  1976 Q1,10.926,260.254,134.401,6.985,55.715,107.76
  1976 Q2,11.818,265.211,136.841,7.487,58.008,110.113
  1976 Q3,10.889,270.908,135.801,8.36,59.147,112.793
  1976 Q4,11.049,276.614,138.761,9.163,63.866,114.892
  1977 Q1,12.083,282.016,141.318,11.928,67.14,116.098
  1977 Q2,12.914,285.712,147.277,14.079,70.964,119.022
  1977 Q3,13.175,291.816,148.563,15.713,71.302,123.313
  1977 Q4,12.808,299.491,153.766,17.377,77.648,129.232
  1978 Q1,13.719,303.936,162.017,18.702,78.546,132.625
  1978 Q2,14.419,310.353,168.747,20.838,82.257,136.999
  1978 Q3,14.992,315.522,167.988,23.017,83.421,140.123
  1978 Q4,15.499,320.607,173.563,25.041,89.55,141.797
  1979 Q1,17.665,324.975,180.067,27.366,93.963,145.185
  1979 Q2,20.564,330.267,190.082,29.681,99.016,145.589
  1979 Q3,23.828,334.133,198.376,32.325,99.7,146.354
  1979 Q4,24.518,337.915,204.44,35.028,105.883,143.988
  1980 Q1,31.052,343.86,211.726,37.147,109.698,141.876
  1980 Q2,36.334,355.03,200.606,40.024,112.178,136.753
  1980 Q3,32.189,362.374,211.545,42.743,109.773,133.885
  1980 Q4,28.026,365.57,231.595,45.892,114.209,134.32
  1981 Q1,31.837,371.608,229.633,48.925,119.793,135.097
  1981 Q2,37.819,379.24,240.073,52.894,126.043,141.064
  1981 Q3,44.081,383.712,253.344,56.029,130.388,146.456
  1981 Q4,42.722,390.331,263.884,59.323,141.066,141.354
  1982 Q1,49.836,398.241,276.786,62.963,141.959,139.894
  1982 Q2,51.741,403.341,297.491,66.287,144.419,136.335
  1982 Q3,49.726,411.321,313.553,70.589,145.584,129.479
  1982 Q4,37.614,420.997,323.733,74.466,145.927,127.196
  1983 Q1,41.187,427.194,326.056,76.92,145.888,143.413
  1983 Q2,38.849,438.317,325.79,79.803,153.678,148.074
  1983 Q3,40.547,442.938,331.693,81.876,158.128,153.029
  1983 Q4,36.775,446.98,352.715,83.897,168.609,158.266
  1984 Q1,42.518,455.202,368.369,85.897,178.987,160.941
  1984 Q2,53.463,463.644,388.451,88.116,190.168,167.617
  1984 Q3,60.349,477.439,391.315,90.48,198.699,171.96
  1984 Q4,58.49,495.058,411.929,104.439,214.839,173.213
  1985 Q1,62.972,513.558,422.84,106.139,218.787,162
  1985 Q2,68.886,535.693,425.185,110.639,222.247,164.619
  1985 Q3,69.036,554.766,434.38,116.039,223.552,160.68
  1985 Q4,72.207,578.234,453.929,127.039,238.234,169.299
  1986 Q1,69.514,614.192,460.434,124.039,244.322,170.473
  1986 Q2,68.654,653.462,469.7,120.767,254.865,174.225
  1986 Q3,72.779,681.794,471.79,119.531,263.03,178.779
  1986 Q4,62.865,705.35,519.64,117.138,274.2,185.294
  1987 Q1,63.593,730.491,504.674,117.349,278.169,215.197
  1987 Q2,67.916,748.212,508.793,116.146,289.192,226.133
  1987 Q3,68.108,768.763,512.77,116.097,293.539,235.439
  1987 Q4,73.768,784.115,524.047,116.224,307.345,246.046
  1988 Q1,73.507,809.612,527.447,115.753,330.501,248.87
  1988 Q2,77.847,840.675,543.546,116.168,336.235,249.822
  1988 Q3,80.303,865.654,544.311,115.932,344.464,245.315
  1988 Q4,85.676,887.232,565.416,116.409,353.269,257.203
  1989 Q1,96.147,901.803,568.118,115.626,373.997,268.772
  1989 Q2,110.059,923.201,577.005,115.09,390.399,270.914
  1989 Q3,113.273,939.038,580.513,114.688,387.529,271.806
  1989 Q4,107.112,961.079,604.541,115.49,402.431,264.568
  1990 Q1,126.034,967.962,598.251,114.943,424.819,280.017
  1990 Q2,128.659,984.418,600.956,115.278,438.658,283.469
  1990 Q3,131.811,991.867,592.325,115.026,453.16,287.096
  1990 Q4,116.852,1008.167,594.058,115.153,463.042,288.117
  1991 Q1,119.851,1027.331,581.382,114.86,440.808,294.017
  1991 Q2,119.437,1051.467,565.328,115.537,434.803,294.937
  1991 Q3,107.016,1071.876,552.776,115.277,425.172,287.707
  1991 Q4,98.477,1086.935,542.316,113.984,405.643,279.284
  1992 Q1,110.434,1106.05,536.795,114.334,405.603,273.738
  1992 Q2,111.996,1125.491,525.425,115.097,403.709,268.434
  1992 Q3,108.216,1140.928,517.213,116.104,404.866,259.115
  1992 Q4,107.106,1154.504,513.956,118.285,411.957,239.192
  1993 Q1,113.9,1212.362,508.097,119.327,405.744,229.953
  1993 Q2,124.025,1258.846,507.802,120.705,398.592,221.569
  1993 Q3,123.232,1302.923,500.973,122.697,390.574,218.149
  1993 Q4,117.829,1337.881,506.662,124.864,384.664,218.772
  1994 Q1,129.885,1374.071,513.379,126.947,409.189,213.357
  1994 Q2,135.68,1396.331,523.931,129.467,411.568,214.016
  1994 Q3,138.683,1410.226,535.277,130.445,412.262,214.876
  1994 Q4,139.238,1428.46,554.175,131.689,422.135,212.35
  1995 Q1,149.799,1440.558,584.346,131.748,438.718,213.706
  1995 Q2,162.887,1466.053,605.399,132.761,445.825,213.226
  1995 Q3,163.268,1475.868,615.857,133.51,445.182,212.599
  1995 Q4,157.351,1494.065,631.493,134.758,467.293,210.025
  1996 Q1,174.174,1516.679,629.014,134.937,474.101,213.091
  1996 Q2,181.726,1542.193,637.523,137.11,482.21,217.349
  1996 Q3,172.999,1557.865,654.084,137.084,488.555,215.582
  1996 Q4,156.405,1581.667,662.307,137.851,484.638,221.455
  1997 Q1,168.747,1609.391,681.234,138.652,490.933,221.747
  1997 Q2,179.286,1644.942,694.276,139.8,491.727,227.574
  1997 Q3,176.649,1696.078,701.623,141.682,500.125,239.981
  1997 Q4,168.598,1709.527,716.874,142.002,534.908,249.125
  1998 Q1,193.105,1780.867,725.632,143.842,550.237,241.584
  1998 Q2,202.491,1865.801,753.418,145.492,553.909,236.572
  1998 Q3,216.872,1891.642,776.539,147.009,558.909,233.495
  1998 Q4,192.958,1927.272,797.481,147.763,595.095,250.635
  1999 Q1,223.886,1975.896,807.848,149.143,628.245,258.689
  1999 Q2,232.365,2036.001,812.028,150.297,616.01,272.717
  1999 Q3,239.28,2103.447,829.215,151.977,615.908,316.109
  1999 Q4,230.326,2128.648,846.082,152.826,623.177,331.346
  2000 Q1,260.797,2170.993,861.373,153.262,659.166,336.617
  2000 Q2,296.844,2198.731,883.327,153.38,680.06,345.548
  2000 Q3,307.039,2238.094,891.393,153.937,666.715,350.315
  2000 Q4,278.402,2265.141,901.298,154.187,700.932,355.561
  2001 Q1,235.619,2363.609,889.451,154.669,705.194,326.059
  2001 Q2,206.256,2463.966,854.407,155.816,727.112,336.964
  2001 Q3,189.571,2497.184,829.573,156.406,729.225,362.527
  2001 Q4,177.726,2548.311,796.819,157.687,703.037,394.915
  2002 Q1,162.983,2594.138,783.066,157.5,698.317,392.181
  2002 Q2,141.454,2626.255,735.629,158.317,716.089,403.266
  2002 Q3,136.423,2611.995,715.871,159.165,726.205,418.804
  2002 Q4,119.813,2623.584,693.43,160.622,734.905,450.915
  2003 Q1,119.825,2631.711,668.653,160.774,733.774,461.632
  2003 Q2,100.995,2670.831,638.094,161.893,737.11,473.413
  2003 Q3,103.978,2700.312,622.537,162.518,723.124,489.224
  2003 Q4,82.481,2694.802,614.049,163.914,737.795,494.221
  2004 Q1,91.623,2719.981,580.427,191.923,745.825,529.693
  2004 Q2,98.673,2692.908,582.182,198.007,756.167,542.385
  2004 Q3,105.121,2692.809,592.695,199.017,759.267,567.84
  2004 Q4,97.782,2686.699,618.002,199.585,793.244,580.955
  2005 Q1,112.001,2685.582,610.887,201.491,819.713,593.803
  2005 Q2,110.679,2659.504,617.057,215.128,849.658,647.58
  2005 Q3,116.493,2661.608,589.699,226.831,859.401,694.363
  2005 Q4,90.071,2651.16,590.882,242.888,903.561,766.386
  2006 Q1,96.494,2668.311,600.599,250.38,922.012,788.862
  2006 Q2,111.671,2688.866,598.879,266.709,974.198,805.049
  2006 Q3,110.579,2696.205,607.576,274.494,967.008,831.648
  2006 Q4,112.517,2730.606,612.332,296.631,1028.421,871.805
  2007 Q1,126.169,2759.995,610.717,310.925,1082.131,875.673
  2007 Q2,154.347,2805.338,614.434,338.651,1160.438,893.932
  2007 Q3,131.416,2820.056,670.731,350.671,1250.534,930.076
  2007 Q4,123.814,2854.7,714.425,367.345,1315.942,946.355
  2008 Q1,139.956,2880.399,752.016,377.408,1332.349,953.728
  2008 Q2,139.827,2947.801,758.556,404.571,1362.495,949.216
  2008 Q3,146.538,2967.51,782.564,418.912,1393.784,912.065
  2008 Q4,131.477,2972.543,777.496,432.499,1383.914,871.874
  2009 Q1,106.921,3078.265,716.828,439.935,1308.772,856.672
  2009 Q2,86.18,3144.669,658.175,450.839,1283.507,838.8
  2009 Q3,72.901,3167.267,588.829,459.085,1251.084,803.363
  2009 Q4,58.41,3188.49,549.098,470.135,1138.576,762.325
  2010 Q1,73.617,3244.699,501.635,479.153,1103.731,744.765
  2010 Q2,81.979,3254.637,467.844,489.998,1071.877,700.13
  2010 Q3,97.938,3335.274,459.675,491.729,1061.28,674.155
  2010 Q4,82.928,3373.424,482.473,502.716,946.393,673.303
  2011 Q1,110.46,3404.18,499.436,505.337,942.506,628.75
  2011 Q2,106.911,3450.221,525.11,510.062,978.343,594.389
  2011 Q3,124.685,3497.074,573.656,508.941,987.793,573.816
  2011 Q4,116.307,3533.936,629.42,510.926,1006.059,576.168
  2012 Q1,127.583,3620.536,635.317,511.975,991.538,536.568
  2012 Q2,132.081,3671.871,667.102,522.414,986.236,502.092
  2012 Q3,136.003,3770.883,673.429,520.947,1026.928,479.199
  2012 Q4,130.329,3861.332,711.877,522.953,1036.301,479.612
  2013 Q1,140.086,3939.588,693.908,525.333,1036.49,462.893
  2013 Q2,147.246,3983.139,712.435,529.248,1075.742,464.532
  2013 Q3,171.169,4091.54,719.402,525.536,1065.484,490.896
  2013 Q4,144.511,4140.67,765.461,523.97,1062.722,487.487
  2014 Q1,180.154,4213.595,778.023,523.348,1093.724,470.134
  2014 Q2,185.778,4279.66,815.699,522.955,1081.092,465.148
  2014 Q3,207.06,4330.769,821.615,520.638,1122.546,460.68
  2014 Q4,182.012,4430.305,863.713,523.311,1127.749,470.357
  2015 Q1,188.286,4541.164,895.841,529.303,1146.046,480.023
  2015 Q2,177.555,4699.742,925.937,536.992,1141.627,505.72
  2015 Q3,201.257,4780.81,922.566,538.08,1114.311,517.185
  2015 Q4,179.017,4832.374,966.965,536.216,1092.079,568.496
  2016 Q1,184.673,4963.175,1000.285,539.991,1119.678,550.214
  2016 Q2,185.663,5039.722,996.842,550.457,1082.228,547.265
  2016 Q3,176.268,5116.1,987.551,553.003,1105.104,572.49
  2016 Q4,180.783,5101.008,968.199,553.909,1103.142,570.105
  2017 Q1,195.512,5214.796,949.701,554.267,1193.741,538.28
  2017 Q2,194.666,5274.026,934.213,562.234,1260.924,532.032
  2017 Q3,206.063,5357.354,915.756,556.578,1295.21,510.483
  2017 Q4,206.67,5382.907,920.471,567.186,1388.654,536.242
  2018 Q1,242.01,5441.472,928.952,564.359,1371.578,546.619
  2018 Q2,240.837,5447.921,946.48,567.017,1678.694,564.912
  2018 Q3,223.58,5504.8,944.614,561.449,1717.529,574.325
  2018 Q4,196.467,5537.447,990.267,563.061,1726.902,585.247
  2019 Q1,241.104,5628.116,1001.528,565.705,1776.766,599.419
  2019 Q2,236.578,5707.451,1010.882,569.336,1800.121,609.935
  2019 Q3,216.317,5801.941,1005.572,569.784,1826.827,620.45
  2019 Q4,194.53,5785.607,1009.809,577.179,1855.694,626.032
  2020 Q1,243.129,5960.213,1339.82,579.859,1945.637,636.786
  2020 Q2,166.104,6385.06,1334.272,580.986,1935.958,651.14
  2020 Q3,122.229,6465.295,1140.082,582.275,1929.876,663.194  
  Year,Fixed Assets,Tangible Assets,Book Value,Capital
  1952 Q1,0.23832686,0.245858337,0.21242803,0.344971046
  1952 Q2,0.23899278,0.246620683,0.212232607,0.338833025
  1952 Q3,0.244367392,0.25239387,0.216506069,0.344678096
  1952 Q4,0.248768552,0.257054049,0.222170007,0.367235442
  1953 Q1,0.250327726,0.258879299,0.223145719,0.376831797
  1953 Q2,0.249113101,0.257755169,0.221757938,0.394963151
  1953 Q3,0.248037333,0.256756953,0.220734081,0.405942687
  1953 Q4,0.249085312,0.258008938,0.223473031,0.382507479
  1954 Q1,0.24927497,0.258429446,0.223400776,0.365899683
  1954 Q2,0.246964683,0.256146452,0.220808422,0.343169611
  1954 Q3,0.248941196,0.258374806,0.222270442,0.32196955
  1954 Q4,0.251801527,0.261480228,0.226049927,0.322726751
  1955 Q1,0.252826493,0.262874453,0.225106645,0.316790719
  1955 Q2,0.253033398,0.263129438,0.22488212,0.297227649
  1955 Q3,0.250094877,0.260052669,0.222806675,0.286718482
  1955 Q4,0.252990667,0.263010054,0.227893645,0.293007718
  1956 Q1,0.249384981,0.259252494,0.22477534,0.283108529
  1956 Q2,0.251323824,0.261473481,0.226672313,0.295472921
  1956 Q3,0.247482821,0.257507325,0.223871822,0.303889856
  1956 Q4,0.249350562,0.259541503,0.226979559,0.292515303
  1957 Q1,0.249764083,0.260109913,0.227330061,0.308908828
  1957 Q2,0.251977492,0.262541214,0.229450677,0.298749657
  1957 Q3,0.251330522,0.261983061,0.228964526,0.324390996
  1957 Q4,0.253920409,0.264763916,0.233724967,0.329254679
  1958 Q1,0.256013357,0.267207963,0.235210667,0.318908874
  1958 Q2,0.255901335,0.26722813,0.235263918,0.306769428
  1958 Q3,0.256260258,0.267730462,0.235195373,0.285813835
  1958 Q4,0.261897599,0.273752375,0.241249031,0.282711235
  1959 Q1,0.260748673,0.272628597,0.239823999,0.279584778
  1959 Q2,0.264502793,0.276789929,0.242497155,0.275776795
  1959 Q3,0.263990942,0.276469022,0.241000365,0.281101673
  1959 Q4,0.269075206,0.282004503,0.246855258,0.273946376
  1960 Q1,0.27210911,0.285396323,0.249152819,0.290220688
  1960 Q2,0.275308113,0.288895972,0.253263385,0.289170104
  1960 Q3,0.274521979,0.288281536,0.25190543,0.306388518
  1960 Q4,0.280110665,0.294364312,0.259722282,0.285050846
  1961 Q1,0.278776141,0.293173055,0.258215221,0.261795711
  1961 Q2,0.280727998,0.295399724,0.259059296,0.264089506
  1961 Q3,0.27975058,0.294576291,0.25759775,0.259387014
  1961 Q4,0.286005122,0.30134771,0.26488962,0.259009821
  1962 Q1,0.285174057,0.300606049,0.263236915,0.264336576
  1962 Q2,0.289358413,0.305189108,0.267318669,0.324967652
  1962 Q3,0.289636572,0.305598395,0.267316311,0.3148715
  1962 Q4,0.295821088,0.312263127,0.273773874,0.278107455
  1963 Q1,0.296042369,0.312634747,0.273614537,0.268855514
  1963 Q2,0.298756578,0.315735516,0.275741526,0.263193447
  1963 Q3,0.298015737,0.3152062,0.274628008,0.257009004
  1963 Q4,0.304857516,0.322718944,0.283024448,0.272178235
  1964 Q1,0.304839963,0.322909679,0.281792244,0.261954566
  1964 Q2,0.306757756,0.325038799,0.283535296,0.260134367
  1964 Q3,0.307197611,0.325662918,0.283396016,0.255889755
  1964 Q4,0.312193704,0.330970995,0.291473178,0.256070475
  1965 Q1,0.31493214,0.333971378,0.29386286,0.255645806
  1965 Q2,0.319311321,0.338796953,0.298131966,0.268345578
  1965 Q3,0.31979693,0.339541707,0.298777617,0.254903601
  1965 Q4,0.32343122,0.343436626,0.302418412,0.250230467
  1966 Q1,0.327900283,0.348529743,0.306241559,0.260538179
  1966 Q2,0.331396458,0.352185615,0.309889782,0.276728855
  1966 Q3,0.332118281,0.353124333,0.311321105,0.302199319
  1966 Q4,0.332830828,0.353886731,0.314626108,0.298308818
  1967 Q1,0.335936532,0.35740847,0.317598383,0.276151112
  1967 Q2,0.340116295,0.362109214,0.3222062,0.277255674
  1967 Q3,0.338492862,0.360645905,0.320166947,0.268864565
  1967 Q4,0.337991819,0.360312479,0.320711522,0.263828393
  1968 Q1,0.340297602,0.363056215,0.323841177,0.286807222
  1968 Q2,0.342895975,0.365962375,0.326235937,0.269846152
  1968 Q3,0.342727517,0.365931625,0.327592456,0.274503106
  1968 Q4,0.345887662,0.369348875,0.331978685,0.253336805
  1969 Q1,0.346472588,0.370214244,0.331847418,0.267342723
  1969 Q2,0.349777566,0.373828129,0.336305204,0.281696398
  1969 Q3,0.348014776,0.372111791,0.335399343,0.29403375
  1969 Q4,0.348158427,0.372249532,0.337420599,0.311419263
  1970 Q1,0.360999128,0.386180273,0.350069192,0.332901563
  1970 Q2,0.361085359,0.385910447,0.352265761,0.392936368
  1970 Q3,0.36219268,0.387369278,0.353947487,0.359863417
  1970 Q4,0.360932905,0.385983734,0.354052245,0.341022154
  1971 Q1,0.358490456,0.383331157,0.350572108,0.323174558
  1971 Q2,0.358957515,0.383592018,0.350927067,0.327599716
  1971 Q3,0.357243722,0.381554483,0.348581388,0.335159398
  1971 Q4,0.356088722,0.380148421,0.347767647,0.322565418
  1972 Q1,0.354466917,0.378263337,0.344980538,0.315188947
  1972 Q2,0.356498135,0.380429277,0.346472819,0.319924106
  1972 Q3,0.35477655,0.378566671,0.344951616,0.318607005
  1972 Q4,0.359541721,0.383591762,0.346325016,0.294859127
  1973 Q1,0.361694906,0.385927722,0.346277321,0.314071834
  1973 Q2,0.364198003,0.388438221,0.349052674,0.338157776
  1973 Q3,0.364268122,0.388332118,0.350776413,0.334063885
  1973 Q4,0.36694157,0.391174458,0.353608508,0.380648662
  1974 Q1,0.364181542,0.388272779,0.348883272,0.394128314
  1974 Q2,0.360737201,0.384241329,0.345527216,0.422653684
  1974 Q3,0.347317608,0.369389562,0.331538136,0.499300939
  1974 Q4,0.337793136,0.358739386,0.308317102,0.497967401
  1975 Q1,0.326071643,0.345880867,0.324243878,0.448448752
  1975 Q2,0.320002752,0.339366183,0.317812936,0.41553184
  1975 Q3,0.315678499,0.334755217,0.31659658,0.445990619
  1975 Q4,0.313850607,0.332738354,0.314960175,0.431391913
  1976 Q1,0.309734099,0.328280865,0.308264211,0.398859592
  1976 Q2,0.308514319,0.326962639,0.30455134,0.399070088
  1976 Q3,0.304947513,0.32315022,0.301509922,0.3998859
  1976 Q4,0.305088331,0.323274835,0.302930459,0.398500045
  1977 Q1,0.304107344,0.322062543,0.302905686,0.423898832
  1977 Q2,0.305912785,0.323981278,0.304308234,0.424281314
  1977 Q3,0.304104213,0.322047851,0.303004246,0.439926153
  1977 Q4,0.307950838,0.32610767,0.307226377,0.457355887
  1978 Q1,0.308063992,0.326256537,0.308287119,0.478351823
  1978 Q2,0.308057573,0.326098475,0.308067922,0.468252717
  1978 Q3,0.30300154,0.320676213,0.30236421,0.454100368
  1978 Q4,0.301224589,0.318731956,0.300980315,0.472212685
  1979 Q1,0.299680544,0.317011734,0.299696362,0.464252836
  1979 Q2,0.298547256,0.315796284,0.297973364,0.469532783
  1979 Q3,0.29450413,0.311465959,0.293420126,0.459718281
  1979 Q4,0.291119802,0.307938368,0.290926305,0.456372358
  1980 Q1,0.289384869,0.306133512,0.291102188,0.477784516
  1980 Q2,0.281595972,0.297882888,0.282967152,0.450060899
  1980 Q3,0.275926246,0.291893066,0.27545472,0.423729795
  1980 Q4,0.274633851,0.290496779,0.273809276,0.405840568
  1981 Q1,0.27083296,0.286503911,0.27000055,0.40953741
  1981 Q2,0.273745599,0.289612964,0.273233424,0.426181796
  1981 Q3,0.276817828,0.292963344,0.27890296,0.471640017
  1981 Q4,0.2749963,0.291153441,0.277106955,0.45875559
  1982 Q1,0.274660814,0.290757822,0.286149103,0.495239877
  1982 Q2,0.278422552,0.295013382,0.291595985,0.506015647
  1982 Q3,0.280507956,0.297524568,0.29390574,0.488581966
  1982 Q4,0.281078179,0.298511161,0.293718146,0.449063132
  1983 Q1,0.284857429,0.302772895,0.297190938,0.430793688
  1983 Q2,0.290205558,0.308880196,0.300382315,0.405523
  1983 Q3,0.294439717,0.313864491,0.304626463,0.414131979
  1983 Q4,0.300303712,0.320419789,0.311290428,0.43345578
  1984 Q1,0.308285664,0.329376806,0.320461426,0.458217471
  1984 Q2,0.317826429,0.339857248,0.330502315,0.481428892
  1984 Q3,0.321795464,0.344447897,0.333039798,0.473974952
  1984 Q4,0.332346833,0.355908988,0.342589,0.484174004
  1985 Q1,0.335673092,0.35995013,0.349480868,0.47073713
  1985 Q2,0.341136165,0.366148124,0.357187811,0.466927228
  1985 Q3,0.343557556,0.369054777,0.362509165,0.486985669
  1985 Q4,0.355592521,0.382103906,0.377227075,0.46091442
  1986 Q1,0.361980881,0.389426863,0.384683464,0.440595523
  1986 Q2,0.370732477,0.399159865,0.393821094,0.436920163
  1986 Q3,0.37622554,0.405349921,0.402228419,0.468045483
  1986 Q4,0.388734846,0.419145589,0.417975188,0.454163401
  1987 Q1,0.394743256,0.426037353,0.421486328,0.413518779
  1987 Q2,0.400782065,0.433014503,0.427244248,0.412742321
  1987 Q3,0.404683719,0.437703605,0.429868267,0.403858399
  1987 Q4,0.407775896,0.44127997,0.439264339,0.472902574
  1988 Q1,0.411390674,0.445468416,0.444764138,0.465353775
  1988 Q2,0.41721158,0.451976388,0.450948207,0.462538295
  1988 Q3,0.418170091,0.453202176,0.451755115,0.471720441
  1988 Q4,0.423808472,0.459286749,0.458812029,0.469639857
  1989 Q1,0.415979679,0.450002623,0.450609782,0.46546166
  1989 Q2,0.426244452,0.461804232,0.462644902,0.456998974
  1989 Q3,0.428742158,0.465263108,0.468578792,0.440577558
  1989 Q4,0.437313034,0.47531949,0.487889313,0.438916619
  1990 Q1,0.445959721,0.485490047,0.502572356,0.455283041
  1990 Q2,0.451873208,0.492870062,0.509674262,0.448697874
  1990 Q3,0.451323859,0.492861583,0.513298876,0.492122699
  1990 Q4,0.450942328,0.492792775,0.50926747,0.466575399
  1991 Q1,0.447560147,0.490094787,0.506567749,0.431528498
  1991 Q2,0.448323746,0.491979423,0.506638976,0.434903027
  1991 Q3,0.451280561,0.496847229,0.511294391,0.419909543
  1991 Q4,0.451859469,0.498682655,0.520954338,0.38721734
  1992 Q1,0.458560885,0.506859543,0.543308113,0.394551955
  1992 Q2,0.462136345,0.51214155,0.547874385,0.397189437
  1992 Q3,0.465415369,0.517223435,0.552890927,0.390990898
  1992 Q4,0.469271996,0.523320993,0.558969528,0.368510576
  1993 Q1,0.477130161,0.53255893,0.56888849,0.366188764
  1993 Q2,0.483215416,0.54011743,0.571334966,0.368873911
  1993 Q3,0.485647845,0.543165837,0.569137322,0.364837717
  1993 Q4,0.487248946,0.54601991,0.567101969,0.35718418
  1994 Q1,0.493764654,0.553285463,0.575100098,0.374028995
  1994 Q2,0.494079293,0.553639575,0.571454825,0.382301316
  1994 Q3,0.492830485,0.552640678,0.566643782,0.371837229
  1994 Q4,0.493657508,0.554171301,0.560933325,0.375809106
  1995 Q1,0.499417181,0.561908016,0.566380536,0.364085973
  1995 Q2,0.504689071,0.568109153,0.56674801,0.351040954
  1995 Q3,0.500432129,0.563897581,0.558897068,0.335848583
  1995 Q4,0.502206963,0.565576594,0.571605951,0.325728269
  1996 Q1,0.503744581,0.568090281,0.571510684,0.31977494
  1996 Q2,0.509811701,0.576042541,0.575697135,0.313963005
  1996 Q3,0.51293389,0.580685601,0.576905669,0.314013159
  1996 Q4,0.506881752,0.57360836,0.575978983,0.312540894
  1997 Q1,0.484455434,0.545602505,0.547289295,0.315800438
  1997 Q2,0.494792716,0.559234828,0.553673334,0.289699796
  1997 Q3,0.49133935,0.554880321,0.543580158,0.278437595
  1997 Q4,0.478204353,0.53779925,0.546194667,0.279960814
  1998 Q1,0.472281699,0.529578695,0.534415365,0.259831413
  1998 Q2,0.485800764,0.545463136,0.54912023,0.262033517
  1998 Q3,0.481287574,0.539816332,0.546720684,0.285554193
  1998 Q4,0.484066255,0.54373516,0.561935364,0.25407306
  1999 Q1,0.500491245,0.563745638,0.576712099,0.256139559
  1999 Q2,0.510718926,0.577441419,0.582796528,0.243916762
  1999 Q3,0.511746908,0.577782255,0.583836539,0.256798675
  1999 Q4,0.505560646,0.571524296,0.582008394,0.222878045
  2000 Q1,0.520947268,0.59096072,0.600438508,0.21812929
  2000 Q2,0.5305796,0.603347267,0.617589946,0.230442052
  2000 Q3,0.502270659,0.568004933,0.578415279,0.235242824
  2000 Q4,0.494106412,0.55839912,0.523512817,0.262384809
  2001 Q1,0.494564145,0.559755148,0.532780167,0.288968762
  2001 Q2,0.499964962,0.566419275,0.539839698,0.277103616
  2001 Q3,0.49602311,0.561466074,0.541130957,0.315389121
  2001 Q4,0.503107139,0.571064467,0.527346041,0.290379487
  2002 Q1,0.502258345,0.570380701,0.530085749,0.290143891
  2002 Q2,0.498531364,0.566264203,0.528101724,0.320988667
  2002 Q3,0.493778815,0.561172978,0.52593804,0.361882355
  2002 Q4,0.486972857,0.552458052,0.488442094,0.347252064
  2003 Q1,0.471616573,0.533399437,0.472437162,0.353882598
  2003 Q2,0.472151958,0.535082706,0.46923375,0.323035408
  2003 Q3,0.475609626,0.54038324,0.471487234,0.315787895
  2003 Q4,0.475261638,0.54109387,0.481129442,0.293193751
  2004 Q1,0.468240137,0.531677878,0.470374329,0.290675064
  2004 Q2,0.449776992,0.508455569,0.44685096,0.286627549
  2004 Q3,0.435329236,0.489993634,0.429551226,0.293647998
  2004 Q4,0.431243342,0.484973972,0.425218024,0.277647346
  2005 Q1,0.430045449,0.483771037,0.424694301,0.28023291
  2005 Q2,0.425327254,0.478015005,0.418742778,0.280008489
  2005 Q3,0.419402628,0.470832784,0.40969908,0.275091828
  2005 Q4,0.414500043,0.464621121,0.402403612,0.278703963
  2006 Q1,0.41071062,0.459942935,0.400411397,0.268522703
  2006 Q2,0.40706687,0.454836038,0.395048269,0.281353237
  2006 Q3,0.397404819,0.443110812,0.387564291,0.277920487
  2006 Q4,0.403739744,0.450380842,0.395285536,0.272506324
  2007 Q1,0.399658458,0.445466011,0.393012038,0.268703339
  2007 Q2,0.400135561,0.445243631,0.396711738,0.264856811
  2007 Q3,0.401850692,0.446568414,0.400472602,0.266650174
  2007 Q4,0.410963166,0.457209406,0.406624579,0.279071108
  2008 Q1,0.429883178,0.480780271,0.425060889,0.299813134
  2008 Q2,0.448535573,0.503941553,0.44555516,0.306189825
  2008 Q3,0.441765379,0.495651077,0.440164558,0.333400201
  2008 Q4,0.447875503,0.50395834,0.451960298,0.382158022
  2009 Q1,0.452067209,0.509777508,0.44841636,0.403924842
  2009 Q2,0.490813926,0.560107515,0.489712372,0.372472498
  2009 Q3,0.510282639,0.588009411,0.513034991,0.338615189
  2009 Q4,0.501069245,0.579825784,0.496503362,0.320926616
  2010 Q1,0.507966789,0.590069203,0.502481224,0.311563519
  2010 Q2,0.474557942,0.547649193,0.459581999,0.333060709
  2010 Q3,0.476625191,0.550077347,0.466192804,0.312592098
  2010 Q4,0.468696715,0.541661681,0.53333734,0.290132446
  2011 Q1,0.4620747,0.533971592,0.52673004,0.278340407
  2011 Q2,0.463234742,0.535699958,0.522242885,0.282309466
  2011 Q3,0.474644656,0.550563232,0.524163087,0.317431797
  2011 Q4,0.46888681,0.542013649,0.535955738,0.301303852
  2012 Q1,0.462410586,0.5339747,0.542678715,0.280766994
  2012 Q2,0.467092131,0.540327756,0.540664972,0.28873167
  2012 Q3,0.465670148,0.537755588,0.546271383,0.282577397
  2012 Q4,0.470807133,0.543049082,0.562832915,0.289752703
  2013 Q1,0.467150958,0.538023153,0.565407505,0.268032543
  2013 Q2,0.460368687,0.528921034,0.558013328,0.268068982
  2013 Q3,0.454189441,0.520264267,0.549575675,0.261319514
  2013 Q4,0.450061444,0.515749802,0.547956555,0.248682152
  2014 Q1,0.458231813,0.526173915,0.55913272,0.246403019
  2014 Q2,0.454445953,0.520872804,0.558337605,0.240154714
  2014 Q3,0.453919632,0.519957374,0.557703531,0.244163457
  2014 Q4,0.449870329,0.514163397,0.566151638,0.240580545
  2015 Q1,0.443316982,0.505177695,0.563028002,0.242907571
  2015 Q2,0.449620605,0.512286358,0.568583701,0.249217931
  2015 Q3,0.450229363,0.51254412,0.55766365,0.267130596
  2015 Q4,0.453969463,0.516279174,0.576552772,0.260851523
  2016 Q1,0.470528071,0.536312792,0.605135153,0.261545868
  2016 Q2,0.466118472,0.531537401,0.598158335,0.259233207
  2016 Q3,0.458220077,0.521121309,0.587064288,0.256848436
  2016 Q4,0.450593155,0.513088681,0.584199418,0.254377524
  2017 Q1,0.458956689,0.523478944,0.60186484,0.247604304
  2017 Q2,0.453728321,0.517009169,0.592282223,0.246942847
  2017 Q3,0.451568961,0.514714922,0.588874539,0.243227006
  2017 Q4,0.448192695,0.510174959,0.584005007,0.23641564
  2018 Q1,0.453959044,0.518535661,0.588891621,0.239601848
  2018 Q2,0.454130465,0.517382693,0.58916585,0.240325369
  2018 Q3,0.462575884,0.528777012,0.62350568,0.231792439
  2018 Q4,0.462008637,0.528213308,0.585201805,0.263529634
  2019 Q1,0.461412297,0.527448377,0.617625685,0.241732323
  2019 Q2,0.451305409,0.514704243,0.606266175,0.239352725
  2019 Q3,0.447017023,0.509367756,0.598173909,0.240724808
  2019 Q4,0.452177768,0.516592403,0.628437438,0.227773295
  2020 Q1,0.477822203,0.546511845,0.62265418,0.281781162
  2020 Q2,0.490374724,0.561888905,0.674051328,0.245162825
  2020 Q3,0.485404542,0.557477389,0.68374807,0.225771094
  Year,Market Value of Equity,Total Debt
  1952 Q1,151.463,79.768
  1952 Q2,157.607,80.77
  1952 Q3,156.907,82.528
  1952 Q4,146.628,85.098
  1953 Q1,143.052,86.504
  1953 Q2,133.816,87.354
  1953 Q3,129.274,88.338
  1953 Q4,144.082,89.252
  1954 Q1,156.255,90.165
  1954 Q2,172.55,90.151
  1954 Q3,191.985,91.166
  1954 Q4,194.84,92.843
  1955 Q1,202.122,93.72
  1955 Q2,225.533,95.386
  1955 Q3,240.995,96.873
  1955 Q4,244.222,101.216
  1956 Q1,262.345,103.603
  1956 Q2,252.704,105.982
  1956 Q3,246.833,107.756
  1956 Q4,268.373,110.961
  1957 Q1,254.023,113.545
  1957 Q2,273.076,116.337
  1957 Q3,245.392,117.824
  1957 Q4,245.747,120.632
  1958 Q1,261.319,122.358
  1958 Q2,278.565,123.271
  1958 Q3,310.541,124.277
  1958 Q4,324.67,127.965
  1959 Q1,332.012,128.85
  1959 Q2,346.451,131.925
  1959 Q3,339.875,132.897
  1959 Q4,362.157,136.645
  1960 Q1,339.31,138.74
  1960 Q2,347.588,141.401
  1960 Q3,321.285,141.921
  1960 Q4,365.166,145.592
  1961 Q1,410.353,145.527
  1961 Q2,411.555,147.691
  1961 Q3,423.621,148.366
  1961 Q4,437.674,152.987
  1962 Q1,427.931,153.763
  1962 Q2,326.582,157.22
  1962 Q3,345.363,158.722
  1962 Q4,424.314,163.466
  1963 Q1,447.981,164.731
  1963 Q2,469.026,167.54
  1963 Q3,487.677,168.693
  1963 Q4,465.779,174.184
  1964 Q1,495.027,175.7
  1964 Q2,511.094,179.699
  1964 Q3,528.953,181.9
  1964 Q4,545.955,187.925
  1965 Q1,559.834,192.273
  1965 Q2,539.451,197.852
  1965 Q3,587.928,201.135
  1965 Q4,623.812,208.193
  1966 Q1,606.267,213.609
  1966 Q2,581.05,222.314
  1966 Q3,523.227,226.596
  1966 Q4,547.891,232.924
  1967 Q1,625.556,238.652
  1967 Q2,641.312,246.017
  1967 Q3,678.588,249.541
  1967 Q4,712.221,255.245
  1968 Q1,652.734,262.494
  1968 Q2,731.114,270.201
  1968 Q3,728.536,275.653
  1968 Q4,843.15,286.074
  1969 Q1,803.399,293.156
  1969 Q2,774.485,303.729
  1969 Q3,743.955,309.856
  1969 Q4,705.075,318.879
  1970 Q1,677.754,338.219
  1970 Q2,541.573,350.546
  1970 Q3,633.467,356.114
  1970 Q4,702.189,363.384
  1971 Q1,774.49,369.808
  1971 Q2,778.343,379.216
  1971 Q3,765.304,385.805
  1971 Q4,823.753,392.236
  1972 Q1,871.948,401.32
  1972 Q2,874.936,411.591
  1972 Q3,893.435,417.754
  1972 Q4,1032.664,431.815
  1973 Q1,970.552,444.395
  1973 Q2,903.639,461.7
  1973 Q3,953.484,478.311
  1973 Q4,809.377,497.437
  1974 Q1,784.167,510.112
  1974 Q2,723.296,529.498
  1974 Q3,540.407,538.898
  1974 Q4,557.581,553.066
  1975 Q1,684.902,556.872
  1975 Q2,791.599,562.793
  1975 Q3,701.69,564.877
  1975 Q4,754.817,572.665
  1976 Q1,868.179,576.041
  1976 Q2,887.651,589.478
  1976 Q3,897.275,597.899
  1976 Q4,927.3,614.346
  1977 Q1,856.996,630.583
  1977 Q2,881.959,649.968
  1977 Q3,845.194,663.882
  1977 Q4,819.054,690.322
  1978 Q1,773.767,709.545
  1978 Q2,833.089,733.612
  1978 Q3,895.681,745.062
  1978 Q4,856.213,766.056
  1979 Q1,910.76,789.221
  1979 Q2,920.994,815.2
  1979 Q3,980.996,834.716
  1979 Q4,1014.625,851.772
  1980 Q1,956.763,875.36
  1980 Q2,1076.42,880.924
  1980 Q3,1213.806,892.508
  1980 Q4,1346.332,919.612
  1981 Q1,1350.793,936.893
  1981 Q2,1315.628,977.133
  1981 Q3,1135.956,1014.01
  1981 Q4,1225.445,1038.68
  1982 Q1,1090.243,1069.68
  1982 Q2,1073.469,1099.614
  1982 Q3,1172.612,1120.252
  1982 Q4,1386.269,1129.934
  1983 Q1,1533.575,1160.659
  1983 Q2,1736.437,1184.512
  1983 Q3,1709.243,1208.211
  1983 Q4,1630.197,1247.243
  1984 Q1,1527.519,1291.913
  1984 Q2,1455.724,1351.459
  1984 Q3,1542.913,1390.242
  1984 Q4,1553.28,1457.968
  1985 Q1,1671.084,1486.296
  1985 Q2,1743.624,1527.269
  1985 Q3,1641.75,1558.453
  1985 Q4,1916.908,1638.943
  1986 Q1,2136.797,1682.974
  1986 Q2,2244.577,1741.673
  1986 Q3,2031.804,1787.703
  1986 Q4,2240.835,1864.487
  1987 Q1,2708.148,1909.473
  1987 Q2,2783.592,1956.392
  1987 Q3,2944.431,1994.716
  1987 Q4,2286.653,2051.545
  1988 Q1,2419.233,2105.69
  1988 Q2,2514.872,2164.293
  1988 Q3,2459.275,2195.978
  1988 Q4,2558.076,2265.205
  1989 Q1,2669.423,2324.462
  1989 Q2,2835.812,2386.668
  1989 Q3,3056.089,2406.847
  1989 Q4,3138.6,2455.221
  1990 Q1,3005.478,2512.026
  1990 Q2,3134.877,2551.437
  1990 Q3,2653.601,2571.285
  1990 Q4,2955.814,2585.389
  1991 Q1,3396.441,2578.249
  1991 Q2,3354.319,2581.51
  1991 Q3,3536.308,2559.824
  1991 Q4,3998.481,2526.64
  1992 Q1,3908.353,2546.954
  1992 Q2,3870.341,2550.152
  1992 Q3,3966.349,2546.442
  1992 Q4,4361.179,2545
  1993 Q1,4481.787,2589.383
  1993 Q2,4502.439,2631.538
  1993 Q3,4628.385,2658.548
  1993 Q4,4842.338,2690.672
  1994 Q1,4630.536,2766.829
  1994 Q2,4541.826,2810.992
  1994 Q3,4800.739,2841.769
  1994 Q4,4796.829,2888.046
  1995 Q1,5167.983,2958.875
  1995 Q2,5594.356,3026.151
  1995 Q3,6024.123,3046.283
  1995 Q4,6406.754,3094.985
  1996 Q1,6683.652,3141.996
  1996 Q2,6988.156,3198.111
  1996 Q3,7047.824,3226.169
  1996 Q4,7136.15,3244.322
  1997 Q1,7172.828,3310.704
  1997 Q2,8281.378,3377.605
  1997 Q3,8956.472,3456.137
  1997 Q4,9055.845,3521.033
  1998 Q1,10355.601,3635.267
  1998 Q2,10582.784,3757.683
  1998 Q3,9568.672,3824.467
  1998 Q4,11482.812,3911.205
  1999 Q1,11743.42,4043.708
  1999 Q2,12769.204,4119.418
  1999 Q3,12317.109,4255.936
  1999 Q4,15036.312,4312.404
  2000 Q1,15922.815,4442.208
  2000 Q2,15221.012,4557.891
  2000 Q3,14978.622,4607.493
  2000 Q4,13087.586,4655.522
  2001 Q1,11502.24,4674.602
  2001 Q2,12377.309,4744.521
  2001 Q3,10342.205,4764.486
  2001 Q4,11677.54,4778.495
  2002 Q1,11714.607,4788.184
  2002 Q2,10113.628,4781.01
  2002 Q3,8408.369,4768.463
  2002 Q4,8991.36,4783.268
  2003 Q1,8720.675,4776.369
  2003 Q2,10022.037,4782.337
  2003 Q3,10403.742,4801.692
  2003 Q4,11540.719,4787.262
  2004 Q1,11858.412,4859.472
  2004 Q2,12121.492,4870.322
  2004 Q3,11826.934,4916.749
  2004 Q4,12946.71,4976.267
  2005 Q1,12902.601,5023.477
  2005 Q2,13112.723,5099.607
  2005 Q3,13566.792,5148.395
  2005 Q4,13574.117,5244.948
  2006 Q1,14510.242,5326.658
  2006 Q2,13908.849,5445.373
  2006 Q3,14257.382,5487.51
  2006 Q4,15089.636,5652.312
  2007 Q1,15691.548,5765.61
  2007 Q2,16562.543,5967.14
  2007 Q3,16923.511,6153.485
  2007 Q4,16333.228,6322.582
  2008 Q1,15030.366,6435.855
  2008 Q2,14870.208,6562.467
  2008 Q3,13238.762,6621.373
  2008 Q4,10621.521,6569.802
  2009 Q1,9603.014,6507.394
  2009 Q2,10887.22,6462.171
  2009 Q3,12388.26,6342.53
  2009 Q4,13049.303,6167.034
  2010 Q1,13583.85,6147.6
  2010 Q2,12147.825,6066.464
  2010 Q3,13458.34,6120.05
  2010 Q4,14830.039,6061.237
  2011 Q1,15791.418,6090.669
  2011 Q2,15672.829,6165.036
  2011 Q3,13473.596,6265.964
  2011 Q4,14777.979,6372.816
  2012 Q1,16454.945,6423.517
  2012 Q2,15967.405,6481.795
  2012 Q3,16775.195,6607.39
  2012 Q4,16527.108,6742.404
  2013 Q1,18565.403,6798.297
  2013 Q2,18873.339,6912.341
  2013 Q3,19968.118,7064.027
  2013 Q4,21525.49,7124.821
  2014 Q1,22200.799,7258.978
  2014 Q2,23256.321,7350.332
  2014 Q3,23103.543,7463.308
  2014 Q4,23982.193,7597.447
  2015 Q1,24250.71,7780.663
  2015 Q2,24062.982,7987.573
  2015 Q3,22151.49,8074.209
  2015 Q4,23165.084,8175.147
  2016 Q1,23598.199,8358.016
  2016 Q2,24009.477,8402.177
  2016 Q3,24623.873,8510.516
  2016 Q4,24847.913,8477.146
  2017 Q1,26273.52,8646.297
  2017 Q2,26707.986,8758.095
  2017 Q3,27509.138,8841.443
  2017 Q4,29075.427,9002.13
  2018 Q1,28863.774,9094.99
  2018 Q2,29858.608,9445.861
  2018 Q3,31572.097,9526.297
  2018 Q4,26826.836,9599.39
  2019 Q1,30780.353,9812.638
  2019 Q2,31570.564,9934.303
  2019 Q3,31670.186,10040.891
  2019 Q4,34068.924,10048.851
  2020 Q1,27286.606,10705.444
  2020 Q2,34032.921,11053.519
  2020 Q3,37389.108,10902.951  
  Year,Fixed Assets,Capital,AAA Bond Yield,BAA Bond Yield
  1952 Q1,0.23832686,0.344971046,0.029566667,0.035433333
  1952 Q2,0.23899278,0.338833025,0.029333333,0.034966667
  1952 Q3,0.244367392,0.344678096,0.029466667,0.0351
  1952 Q4,0.248768552,0.367235442,0.029866667,0.035266667
  1953 Q1,0.250327726,0.376831797,0.0307,0.035366667
  1953 Q2,0.249113101,0.394963151,0.033233333,0.037633333
  1953 Q3,0.248037333,0.405942687,0.0327,0.038633333
  1953 Q4,0.249085312,0.382507479,0.031333333,0.0377
  1954 Q1,0.24927497,0.365899683,0.029566667,0.0361
  1954 Q2,0.246964683,0.343169611,0.028766667,0.034766667
  1954 Q3,0.248941196,0.32196955,0.028833333,0.034866667
  1954 Q4,0.251801527,0.322726751,0.028866667,0.034533333
  1955 Q1,0.252826493,0.316790719,0.0296,0.034666667
  1955 Q2,0.253033398,0.297227649,0.030333333,0.035
  1955 Q3,0.250094877,0.286718482,0.031,0.035566667
  1955 Q4,0.252990667,0.293007718,0.031166667,0.035966667
  1956 Q1,0.249384981,0.283108529,0.030966667,0.035933333
  1956 Q2,0.251323824,0.295472921,0.0326,0.037233333
  1956 Q3,0.247482821,0.303889856,0.034233333,0.039333333
  1956 Q4,0.249350562,0.292515303,0.036766667,0.0426
  1957 Q1,0.249764083,0.308908828,0.037,0.044633333
  1957 Q2,0.251977492,0.298749657,0.037733333,0.0453
  1957 Q3,0.251330522,0.324390996,0.0407,0.048266667
  1957 Q4,0.253920409,0.329254679,0.039966667,0.050366667
  1958 Q1,0.256013357,0.318908874,0.036066667,0.047233333
  1958 Q2,0.255901335,0.306769428,0.0358,0.046133333
  1958 Q3,0.256260258,0.285813835,0.0387,0.0469
  1958 Q4,0.261897599,0.282711235,0.040933333,0.0488
  1959 Q1,0.260748673,0.279584778,0.0413,0.0487
  1959 Q2,0.264502793,0.275776795,0.043533333,0.049533333
  1959 Q3,0.263990942,0.281101673,0.044733333,0.051166667
  1959 Q4,0.269075206,0.273946376,0.0457,0.052733333
  1960 Q1,0.27210911,0.290220688,0.045533333,0.0531
  1960 Q2,0.275308113,0.289170104,0.044533333,0.052466667
  1960 Q3,0.274521979,0.306388518,0.043133333,0.051033333
  1960 Q4,0.280110665,0.285050846,0.0432,0.050966667
  1961 Q1,0.278776141,0.261795711,0.0427,0.050633333
  1961 Q2,0.280727998,0.264089506,0.042833333,0.050166667
  1961 Q3,0.27975058,0.259387014,0.044366667,0.051066667
  1961 Q4,0.286005122,0.259009821,0.0441,0.051133333
  1962 Q1,0.285174057,0.264336576,0.0441,0.050633333
  1962 Q2,0.289358413,0.324967652,0.042966667,0.050133333
  1962 Q3,0.289636572,0.3148715,0.043366667,0.050466667
  1962 Q4,0.295821088,0.278107455,0.042566667,0.049566667
  1963 Q1,0.296042369,0.268855514,0.041966667,0.048933333
  1963 Q2,0.298756578,0.263193447,0.0422,0.048533333
  1963 Q3,0.298015737,0.257009004,0.042866667,0.048366667
  1963 Q4,0.304857516,0.272178235,0.043333333,0.0484
  1964 Q1,0.304839963,0.261954566,0.043766667,0.0483
  1964 Q2,0.306757756,0.260134367,0.044066667,0.0485
  1964 Q3,0.307197611,0.255889755,0.0441,0.048233333
  1964 Q4,0.312193704,0.256070475,0.0443,0.0481
  1965 Q1,0.31493214,0.255645806,0.0442,0.047866667
  1965 Q2,0.319311321,0.268345578,0.044433333,0.0482
  1965 Q3,0.31979693,0.254903601,0.044966667,0.0489
  1965 Q4,0.32343122,0.250230467,0.046133333,0.049666667
  1966 Q1,0.327900283,0.260538179,0.048133333,0.051666667
  1966 Q2,0.331396458,0.276728855,0.050033333,0.0549
  1966 Q3,0.332118281,0.302199319,0.0532,0.058666667
  1966 Q4,0.332830828,0.298308818,0.053833333,0.061366667
  1967 Q1,0.335936532,0.276151112,0.0512,0.0588
  1967 Q2,0.340116295,0.277255674,0.052633333,0.0598
  1967 Q3,0.338492862,0.268864565,0.056166667,0.0633
  1967 Q4,0.337991819,0.263828393,0.060266667,0.067233333
  1968 Q1,0.340297602,0.286807222,0.061266667,0.0683
  1968 Q2,0.342895975,0.269846152,0.062533333,0.070233333
  1968 Q3,0.342727517,0.274503106,0.060766667,0.068633333
  1968 Q4,0.345887662,0.253336805,0.062433333,0.070266667
  1969 Q1,0.346472588,0.267342723,0.067,0.073766667
  1969 Q2,0.349777566,0.281696398,0.068866667,0.075866667
  1969 Q3,0.348014776,0.29403375,0.070633333,0.079166667
  1969 Q4,0.348158427,0.311419263,0.074666667,0.083733333
  1970 Q1,0.360999128,0.332901563,0.078933333,0.087566667
  1970 Q2,0.361085359,0.392936368,0.0814,0.089766667
  1970 Q3,0.36219268,0.359863417,0.0822,0.0941
  1970 Q4,0.360932905,0.341022154,0.079066667,0.092766667
  1971 Q1,0.358490456,0.323174558,0.072166667,0.0853
  1971 Q2,0.358957515,0.327599716,0.074733333,0.086066667
  1971 Q3,0.357243722,0.335159398,0.075566667,0.087033333
  1971 Q4,0.356088722,0.322565418,0.073,0.084133333
  1972 Q1,0.354466917,0.315188947,0.072333333,0.082333333
  1972 Q2,0.356498135,0.319924106,0.072766667,0.082233333
  1972 Q3,0.35477655,0.318607005,0.072066667,0.0817
  1972 Q4,0.359541721,0.294859127,0.071366667,0.079933333
  1973 Q1,0.361694906,0.314071834,0.0722,0.079666667
  1973 Q2,0.364198003,0.338157776,0.073066667,0.080933333
  1973 Q3,0.364268122,0.334063885,0.075866667,0.084666667
  1973 Q4,0.36694157,0.380648662,0.0765,0.084366667
  1974 Q1,0.364181542,0.394128314,0.078966667,0.085433333
  1974 Q2,0.360737201,0.422653684,0.083633333,0.090633333
  1974 Q3,0.347317608,0.499300939,0.089866667,0.0981
  1974 Q4,0.337793136,0.497967401,0.090166667,0.1057
  1975 Q1,0.326071643,0.448448752,0.087066667,0.106466667
  1975 Q2,0.320002752,0.41553184,0.088733333,0.1063
  1975 Q3,0.315678499,0.445990619,0.089133333,0.105833333
  1975 Q4,0.313850607,0.431391913,0.0881,0.1058
  1976 Q1,0.309734099,0.398859592,0.085566667,0.102566667
  1976 Q2,0.308514319,0.399070088,0.085333333,0.098966667
  1976 Q3,0.304947513,0.3998859,0.084633333,0.0962
  1976 Q4,0.305088331,0.398500045,0.081833333,0.092133333
  1977 Q1,0.304107344,0.423898832,0.080333333,0.091066667
  1977 Q2,0.305912785,0.424281314,0.080133333,0.089966667
  1977 Q3,0.304104213,0.439926153,0.079466667,0.0883
  1977 Q4,0.307950838,0.457355887,0.081033333,0.089433333
  1978 Q1,0.308063992,0.478351823,0.0845,0.091966667
  1978 Q2,0.308057573,0.468252717,0.0867,0.0947
  1978 Q3,0.30300154,0.454100368,0.087533333,0.095
  1978 Q4,0.301224589,0.472212685,0.090266667,0.097866667
  1979 Q1,0.299680544,0.464252836,0.092933333,0.101566667
  1979 Q2,0.298547256,0.469532783,0.0939,0.103933333
  1979 Q3,0.29450413,0.459718281,0.0929,0.103933333
  1979 Q4,0.291119802,0.456372358,0.105433333,0.118166667
  1980 Q1,0.289384869,0.477784516,0.121433333,0.1348
  1980 Q2,0.281595972,0.450060899,0.112033333,0.133566667
  1980 Q3,0.275926246,0.423729795,0.115766667,0.131666667
  1980 Q4,0.274633851,0.405840568,0.1283,0.1467
  1981 Q1,0.27083296,0.40953741,0.131633333,0.152466667
  1981 Q2,0.273745599,0.426181796,0.139833333,0.1577
  1981 Q3,0.276817828,0.471640017,0.1492,0.164766667
  1981 Q4,0.2749963,0.45875559,0.146166667,0.166833333
  1982 Q1,0.274660814,0.495239877,0.1501,0.170333333
  1982 Q2,0.278422552,0.506015647,0.1451,0.1678
  1982 Q3,0.280507956,0.488581966,0.137533333,0.1625
  1982 Q4,0.281078179,0.449063132,0.118766667,0.1439
  1983 Q1,0.284857429,0.430793688,0.118433333,0.138333333
  1983 Q2,0.290205558,0.405523,0.1157,0.1325
  1983 Q3,0.294439717,0.414131979,0.123433333,0.135266667
  1983 Q4,0.300303712,0.43345578,0.1241,0.136066667
  1984 Q1,0.308285664,0.458217471,0.122833333,0.137433333
  1984 Q2,0.317826429,0.481428892,0.132133333,0.147
  1984 Q3,0.321795464,0.473974952,0.1299,0.1471
  1984 Q4,0.332346833,0.484174004,0.1235,0.136066667
  1985 Q1,0.335673092,0.47073713,0.122566667,0.133933333
  1985 Q2,0.341136165,0.466927228,0.1163,0.1302
  1985 Q3,0.343557556,0.486985669,0.1103,0.1247
  1985 Q4,0.355592521,0.46091442,0.105766667,0.119766667
  1986 Q1,0.361980881,0.440595523,0.095733333,0.110166667
  1986 Q2,0.370732477,0.436920163,0.090033333,0.102733333
  1986 Q3,0.37622554,0.468045483,0.0883,0.1018
  1986 Q4,0.388734846,0.454163401,0.086766667,0.100933333
  1987 Q1,0.394743256,0.413518779,0.083666667,0.0966
  1987 Q2,0.400782065,0.412742321,0.091666667,0.103566667
  1987 Q3,0.404683719,0.403858399,0.097566667,0.109066667
  1987 Q4,0.407775896,0.472902574,0.102133333,0.1138
  1988 Q1,0.411390674,0.465353775,0.095566667,0.107533333
  1988 Q2,0.41721158,0.462538295,0.0981,0.1098
  1988 Q3,0.418170091,0.471720441,0.099633333,0.110733333
  1988 Q4,0.423808472,0.469639857,0.0951,0.105133333
  1989 Q1,0.415979679,0.46546166,0.096866667,0.106433333
  1989 Q2,0.426244452,0.456998974,0.094866667,0.103666667
  1989 Q3,0.428742158,0.440577558,0.089666667,0.098866667
  1989 Q4,0.437313034,0.438916619,0.0889,0.098133333
  1990 Q1,0.445959721,0.455283041,0.091933333,0.100966667
  1990 Q2,0.451873208,0.448697874,0.093966667,0.1031
  1990 Q3,0.451323859,0.492122699,0.094033333,0.104166667
  1990 Q4,0.450942328,0.466575399,0.092933333,0.105966667
  1991 Q1,0.447560147,0.431528498,0.089333333,0.102033333
  1991 Q2,0.448323746,0.434903027,0.0891,0.0992
  1991 Q3,0.451280561,0.419909543,0.087866667,0.096833333
  1991 Q4,0.451859469,0.38721734,0.084466667,0.094
  1992 Q1,0.458560885,0.394551955,0.0828,0.092033333
  1992 Q2,0.462136345,0.397189437,0.082766667,0.0913
  1992 Q3,0.465415369,0.390990898,0.0798,0.087033333
  1992 Q4,0.469271996,0.368510576,0.080233333,0.0887
  1993 Q1,0.477130161,0.366188764,0.077333333,0.084033333
  1993 Q2,0.483215416,0.368873911,0.074066667,0.0814
  1993 Q3,0.485647845,0.364837717,0.068933333,0.076233333
  1993 Q4,0.487248946,0.35718418,0.068433333,0.075533333
  1994 Q1,0.493764654,0.374028995,0.0716,0.078466667
  1994 Q2,0.494079293,0.382301316,0.079466667,0.085966667
  1994 Q3,0.492830485,0.371837229,0.081733333,0.0884
  1994 Q4,0.493657508,0.375809106,0.0857,0.092066667
  1995 Q1,0.499417181,0.364085973,0.0828,0.088766667
  1995 Q2,0.504689071,0.351040954,0.0766,0.082333333
  1995 Q3,0.500432129,0.335848583,0.074333333,0.080533333
  1995 Q4,0.502206963,0.325728269,0.069866667,0.0764
  1996 Q1,0.503744581,0.31977494,0.0705,0.0771
  1996 Q2,0.509811701,0.313963005,0.0761,0.082966667
  1996 Q3,0.51293389,0.314013159,0.0759,0.082933333
  1996 Q4,0.506881752,0.312540894,0.0723,0.079166667
  1997 Q1,0.484455434,0.315800438,0.074266667,0.0807
  1997 Q2,0.494792716,0.289699796,0.075733333,0.081866667
  1997 Q3,0.49133935,0.278437595,0.0717,0.077566667
  1997 Q4,0.478204353,0.279960814,0.068766667,0.074366667
  1998 Q1,0.472281699,0.259831413,0.066666667,0.072533333
  1998 Q2,0.485800764,0.262033517,0.066366667,0.072533333
  1998 Q3,0.481287574,0.285554193,0.0649,0.071266667
  1998 Q4,0.484066255,0.25407306,0.063333333,0.0725
  1999 Q1,0.500491245,0.256139559,0.0642,0.074033333
  1999 Q2,0.510718926,0.243916762,0.069333333,0.0774
  1999 Q3,0.511746908,0.256798675,0.073266667,0.081
  1999 Q4,0.505560646,0.222878045,0.074866667,0.0824
  2000 Q1,0.520947268,0.21812929,0.077133333,0.0833
  2000 Q2,0.5305796,0.230442052,0.077666667,0.085933333
  2000 Q3,0.502270659,0.235242824,0.076066667,0.0832
  2000 Q4,0.494106412,0.262384809,0.074033333,0.082133333
  2001 Q1,0.494564145,0.288968762,0.070766667,0.0788
  2001 Q2,0.499964962,0.277103616,0.072233333,0.080366667
  2001 Q3,0.49602311,0.315389121,0.071066667,0.0795
  2001 Q4,0.503107139,0.290379487,0.069233333,0.079233333
  2002 Q1,0.502258345,0.290143891,0.066233333,0.079566667
  2002 Q2,0.498531364,0.320988667,0.067133333,0.080233333
  2002 Q3,0.493778815,0.361882355,0.0635,0.076266667
  2002 Q4,0.486972857,0.347252064,0.0628,0.076
  2003 Q1,0.471616573,0.353882598,0.060033333,0.0712
  2003 Q2,0.472151958,0.323035408,0.0531,0.064733333
  2003 Q3,0.475609626,0.315787895,0.056966667,0.068066667
  2003 Q4,0.475261638,0.293193751,0.056566667,0.066633333
  2004 Q1,0.468240137,0.290675064,0.054566667,0.062733333
  2004 Q2,0.449776992,0.286627549,0.059266667,0.066633333
  2004 Q3,0.435329236,0.293647998,0.056433333,0.0645
  2004 Q4,0.431243342,0.277647346,0.054866667,0.061866667
  2005 Q1,0.430045449,0.28023291,0.0532,0.059666667
  2005 Q2,0.425327254,0.280008489,0.051466667,0.059733333
  2005 Q3,0.419402628,0.275091828,0.050933333,0.0598
  2005 Q4,0.414500043,0.278703963,0.0538,0.063366667
  2006 Q1,0.41071062,0.268522703,0.0539,0.063066667
  2006 Q2,0.40706687,0.281353237,0.058933333,0.067366667
  2006 Q3,0.397404819,0.277920487,0.0568,0.065933333
  2006 Q4,0.403739744,0.272506324,0.053866667,0.0628
  2007 Q1,0.399658458,0.268703339,0.053633333,0.062966667
  2007 Q2,0.400135561,0.264856811,0.055766667,0.064933333
  2007 Q3,0.401850692,0.266650174,0.057533333,0.0663
  2007 Q4,0.410963166,0.279071108,0.0553,0.0651
  2008 Q1,0.429883178,0.299813134,0.054566667,0.0675
  2008 Q2,0.448535573,0.306189825,0.056,0.0699
  2008 Q3,0.441765379,0.333400201,0.056533333,0.072066667
  2008 Q4,0.447875503,0.382158022,0.058166667,0.0884
  2009 Q1,0.452067209,0.403924842,0.052733333,0.082133333
  2009 Q2,0.490813926,0.372472498,0.055133333,0.079833333
  2009 Q3,0.510282639,0.338615189,0.052666667,0.0666
  2009 Q4,0.501069245,0.320926616,0.052,0.063266667
  2010 Q1,0.507966789,0.311563519,0.052933333,0.062866667
  2010 Q2,0.474557942,0.333060709,0.050433333,0.061766667
  2010 Q3,0.476625191,0.312592098,0.0458,0.057766667
  2010 Q4,0.468696715,0.290132446,0.048566667,0.059133333
  2011 Q1,0.4620747,0.278340407,0.0513,0.0609
  2011 Q2,0.463234742,0.282309466,0.050366667,0.0585
  2011 Q3,0.474644656,0.317431797,0.044633333,0.054633333
  2011 Q4,0.46888681,0.301303852,0.039266667,0.052533333
  2012 Q1,0.462410586,0.280766994,0.038966667,0.052
  2012 Q2,0.467092131,0.28873167,0.038,0.050933333
  2012 Q3,0.465670148,0.282577397,0.034566667,0.048733333
  2012 Q4,0.470807133,0.289752703,0.0354,0.045733333
  2013 Q1,0.467150958,0.268032543,0.038766667,0.0481
  2013 Q2,0.460368687,0.268068982,0.039633333,0.048366667
  2013 Q3,0.454189441,0.261319514,0.045066667,0.054033333
  2013 Q4,0.450061444,0.248682152,0.045933333,0.053566667
  2014 Q1,0.458231813,0.246403019,0.0444,0.051166667
  2014 Q2,0.454445953,0.240154714,0.042166667,0.0482
  2014 Q3,0.453919632,0.244163457,0.041166667,0.0474
  2014 Q4,0.449870329,0.240580545,0.038766667,0.0474
  2015 Q1,0.443316982,0.242907571,0.0357,0.045
  2015 Q2,0.449620605,0.249217931,0.038966667,0.048333333
  2015 Q3,0.450229363,0.267130596,0.040866667,0.052433333
  2015 Q4,0.453969463,0.260851523,0.039933333,0.0542
  2016 Q1,0.470528071,0.261545868,0.039266667,0.053066667
  2016 Q2,0.466118472,0.259233207,0.0359,0.046666667
  2016 Q3,0.458220077,0.256848436,0.033366667,0.042566667
  2016 Q4,0.450593155,0.254377524,0.0381,0.0464
  2017 Q1,0.458956689,0.247604304,0.0396,0.0466
  2017 Q2,0.453728321,0.246942847,0.038,0.044966667
  2017 Q3,0.451568961,0.243227006,0.036533333,0.043333333
  2017 Q4,0.448192695,0.23641564,0.0356,0.0427
  2018 Q1,0.453959044,0.239601848,0.037466667,0.0447
  2018 Q2,0.454130465,0.240325369,0.039366667,0.047766667
  2018 Q3,0.462575884,0.231792439,0.0391,0.048133333
  2018 Q4,0.462008637,0.263529634,0.041266667,0.0514
  2019 Q1,0.461412297,0.241732323,0.0383,0.0497
  2019 Q2,0.451305409,0.239352725,0.035933333,0.045966667
  2019 Q3,0.447017023,0.240724808,0.031,0.0402
  2019 Q4,0.452177768,0.227773295,0.030266667,0.039133333
  2020 Q1,0.477822203,0.281781162,0.029133333,0.0389
  2020 Q2,0.490374724,0.245162825,0.024566667,0.039066667
  2020 Q3,0.485404542,0.225771094,0.022333333,0.033133333
  Year,ICR,AAA Bond Yield,BAA Bond Yield
  1960 Q1,16.26861451,0.045533333,0.0531
  1960 Q2,14.65116279,0.044533333,0.052466667
  1960 Q3,14.06944858,0.043133333,0.051033333
  1960 Q4,12.99854904,0.0432,0.050966667
  1961 Q1,12.00331217,0.0427,0.050633333
  1961 Q2,12.92278921,0.042833333,0.050166667
  1961 Q3,13.20387097,0.044366667,0.051066667
  1961 Q4,13.86671631,0.0441,0.051133333
  1962 Q1,13.28798876,0.0441,0.050633333
  1962 Q2,12.75294118,0.042966667,0.050133333
  1962 Q3,12.77376761,0.043366667,0.050466667
  1962 Q4,12.97266466,0.042566667,0.049566667
  1963 Q1,13.02536232,0.041966667,0.048933333
  1963 Q2,13.51507538,0.0422,0.048533333
  1963 Q3,13.54998974,0.042866667,0.048366667
  1963 Q4,13.51297004,0.043333333,0.0484
  1964 Q1,13.83365911,0.043766667,0.0483
  1964 Q2,13.61157814,0.044066667,0.0485
  1964 Q3,13.55310808,0.0441,0.048233333
  1964 Q4,13.17137133,0.0443,0.0481
  1965 Q1,14.1886058,0.0442,0.047866667
  1965 Q2,14.09323051,0.044433333,0.0482
  1965 Q3,13.80947664,0.044966667,0.0489
  1965 Q4,13.9047619,0.046133333,0.049666667
  1966 Q1,13.6697494,0.048133333,0.051666667
  1966 Q2,12.98176119,0.050033333,0.0549
  1966 Q3,12.21247616,0.0532,0.058666667
  1966 Q4,11.86382591,0.053833333,0.061366667
  1967 Q1,10.91694352,0.0512,0.0588
  1967 Q2,10.40572849,0.052633333,0.0598
  1967 Q3,10.12067588,0.056166667,0.0633
  1967 Q4,10.19466873,0.060266667,0.067233333
  1968 Q1,9.874880204,0.061266667,0.0683
  1968 Q2,9.853788033,0.062533333,0.070233333
  1968 Q3,9.394319938,0.060766667,0.068633333
  1968 Q4,8.982541836,0.062433333,0.070266667
  1969 Q1,8.249351519,0.067,0.073766667
  1969 Q2,7.469755569,0.068866667,0.075866667
  1969 Q3,6.731366681,0.070633333,0.079166667
  1969 Q4,5.894764432,0.074666667,0.083733333
  1970 Q1,4.992560149,0.078933333,0.087566667
  1970 Q2,4.957800656,0.0814,0.089766667
  1970 Q3,4.729600174,0.0822,0.0941
  1970 Q4,4.379658842,0.079066667,0.092766667
  1971 Q1,5.042874621,0.072166667,0.0853
  1971 Q2,5.098413709,0.074733333,0.086066667
  1971 Q3,5.165760152,0.075566667,0.087033333
  1971 Q4,5.34259502,0.073,0.084133333
  1972 Q1,5.518761969,0.072333333,0.082333333
  1972 Q2,5.506640883,0.072766667,0.082233333
  1972 Q3,5.624671004,0.072066667,0.0817
  1972 Q4,5.798980475,0.071366667,0.079933333
  1973 Q1,5.817751642,0.0722,0.079666667
  1973 Q2,5.394014854,0.073066667,0.080933333
  1973 Q3,5.108399523,0.075866667,0.084666667
  1973 Q4,4.915848635,0.0765,0.084366667
  1974 Q1,4.361484439,0.078966667,0.085433333
  1974 Q2,4.163042379,0.083633333,0.090633333
  1974 Q3,3.890364482,0.089866667,0.0981
  1974 Q4,3.727990723,0.090166667,0.1057
  1975 Q1,3.686116392,0.087066667,0.106466667
  1975 Q2,4.073905611,0.088733333,0.1063
  1975 Q3,4.735168969,0.089133333,0.105833333
  1975 Q4,5.001138628,0.0881,0.1058
  1976 Q1,5.680940137,0.085566667,0.102566667
  1976 Q2,5.682841353,0.085333333,0.098966667
  1976 Q3,5.724246104,0.084633333,0.0962
  1976 Q4,5.560896588,0.081833333,0.092133333
  1977 Q1,5.597643098,0.080333333,0.091066667
  1977 Q2,6.015631705,0.080133333,0.089966667
  1977 Q3,6.246794586,0.079466667,0.0883
  1977 Q4,5.953806399,0.081033333,0.089433333
  1978 Q1,5.557885763,0.0845,0.091966667
  1978 Q2,6.269176314,0.0867,0.0947
  1978 Q3,6.17095772,0.087533333,0.095
  1978 Q4,6.19348669,0.090266667,0.097866667
  1979 Q1,5.734073058,0.092933333,0.101566667
  1979 Q2,5.440894493,0.0939,0.103933333
  1979 Q3,5.041308592,0.0929,0.103933333
  1979 Q4,4.681320755,0.105433333,0.118166667
  1980 Q1,4.25524429,0.121433333,0.1348
  1980 Q2,3.623085816,0.112033333,0.133566667
  1980 Q3,3.662157869,0.115766667,0.131666667
  1980 Q4,3.894063783,0.1283,0.1467
  1981 Q1,3.891953509,0.131633333,0.152466667
  1981 Q2,3.767931654,0.139833333,0.1577
  1981 Q3,3.882937789,0.1492,0.164766667
  1981 Q4,3.541463665,0.146166667,0.166833333
  1982 Q1,3.199040356,0.1501,0.170333333
  1982 Q2,3.24945954,0.1451,0.1678
  1982 Q3,3.203337923,0.137533333,0.1625
  1982 Q4,3.065511153,0.118766667,0.1439
  1983 Q1,3.298244968,0.118433333,0.138333333
  1983 Q2,3.636685587,0.1157,0.1325
  1983 Q3,3.827949157,0.123433333,0.135266667
  1983 Q4,3.906612964,0.1241,0.136066667
  1984 Q1,4.101790565,0.122833333,0.137433333
  1984 Q2,3.99886654,0.132133333,0.147
  1984 Q3,3.892930435,0.1299,0.1471
  1984 Q4,3.941854902,0.1235,0.136066667
  1985 Q1,3.967693211,0.122566667,0.133933333
  1985 Q2,3.963846355,0.1163,0.1302
  1985 Q3,4.104717166,0.1103,0.1247
  1985 Q4,3.791664573,0.105766667,0.119766667
  1986 Q1,3.640058154,0.095733333,0.110166667
  1986 Q2,3.409093052,0.090033333,0.102733333
  1986 Q3,3.292142086,0.0883,0.1018
  1986 Q4,3.287753917,0.086766667,0.100933333
  1987 Q1,3.361899979,0.083666667,0.0966
  1987 Q2,3.515470901,0.091666667,0.103566667
  1987 Q3,3.613321799,0.097566667,0.109066667
  1987 Q4,3.497127103,0.102133333,0.1138
  1988 Q1,3.477609464,0.095566667,0.107533333
  1988 Q2,3.383167598,0.0981,0.1098
  1988 Q3,3.294205762,0.099633333,0.110733333
  1988 Q4,3.339777974,0.0951,0.105133333
  1989 Q1,3.05088748,0.096866667,0.106433333
  1989 Q2,2.91359428,0.094866667,0.103666667
  1989 Q3,2.835252158,0.089666667,0.098866667
  1989 Q4,2.684006235,0.0889,0.098133333
  1990 Q1,2.712453746,0.091933333,0.100966667
  1990 Q2,2.783268398,0.093966667,0.1031
  1990 Q3,2.640131244,0.094033333,0.104166667
  1990 Q4,2.645126134,0.092933333,0.105966667
  1991 Q1,2.789883671,0.089333333,0.102033333
  1991 Q2,2.850005632,0.0891,0.0992
  1991 Q3,2.915082769,0.087866667,0.096833333
  1991 Q4,2.978160693,0.084466667,0.094
  1992 Q1,3.167936263,0.0828,0.092033333
  1992 Q2,3.369227643,0.082766667,0.0913
  1992 Q3,3.446199129,0.0798,0.087033333
  1992 Q4,3.766799061,0.080233333,0.0887
  1993 Q1,3.767840184,0.077333333,0.084033333
  1993 Q2,4.103027983,0.074066667,0.0814
  1993 Q3,4.207387124,0.068933333,0.076233333
  1993 Q4,4.631316918,0.068433333,0.075533333
  1994 Q1,4.780995428,0.0716,0.078466667
  1994 Q2,4.990277729,0.079466667,0.085966667
  1994 Q3,5.091884428,0.081733333,0.0884
  1994 Q4,5.221828953,0.0857,0.092066667
  1995 Q1,4.921824629,0.0828,0.088766667
  1995 Q2,4.889784457,0.0766,0.082333333
  1995 Q3,5.160181067,0.074333333,0.080533333
  1995 Q4,5.299763802,0.069866667,0.0764
  1996 Q1,5.64645206,0.0705,0.0771
  1996 Q2,5.873527128,0.0761,0.082966667
  1996 Q3,5.97443341,0.0759,0.082933333
  1996 Q4,6.120234306,0.0723,0.079166667
  1997 Q1,6.123127927,0.074266667,0.0807
  1997 Q2,6.048517411,0.075733333,0.081866667
  1997 Q3,6.123796467,0.0717,0.077566667
  1997 Q4,5.793819216,0.068766667,0.074366667
  1998 Q1,5.038198862,0.066666667,0.072533333
  1998 Q2,5.062925813,0.066366667,0.072533333
  1998 Q3,5.169028768,0.0649,0.071266667
  1998 Q4,5.018035314,0.063333333,0.0725
  1999 Q1,5.114386115,0.0642,0.074033333
  1999 Q2,4.98375199,0.069333333,0.0774
  1999 Q3,4.597908927,0.073266667,0.081
  1999 Q4,4.301267715,0.074866667,0.0824
  2000 Q1,4.005231939,0.077133333,0.0833
  2000 Q2,3.825383431,0.077666667,0.085933333
  2000 Q3,3.587540697,0.076066667,0.0832
  2000 Q4,3.326245031,0.074033333,0.082133333
  2001 Q1,3.040520206,0.070766667,0.0788
  2001 Q2,3.095094275,0.072233333,0.080366667
  2001 Q3,3.05568024,0.071066667,0.0795
  2001 Q4,2.828774195,0.069233333,0.079233333
  2002 Q1,3.292318264,0.066233333,0.079566667
  2002 Q2,3.497879297,0.067133333,0.080233333
  2002 Q3,3.691120749,0.0635,0.076266667
  2002 Q4,4.157727605,0.0628,0.076
  2003 Q1,4.35207794,0.060033333,0.0712
  2003 Q2,4.642604062,0.0531,0.064733333
  2003 Q3,5.002093061,0.056966667,0.068066667
  2003 Q4,5.267590599,0.056566667,0.066633333
  2004 Q1,5.785461555,0.054566667,0.062733333
  2004 Q2,6.052551309,0.059266667,0.066633333
  2004 Q3,6.241872706,0.056433333,0.0645
  2004 Q4,6.044173479,0.054866667,0.061866667
  2005 Q1,6.261585952,0.0532,0.059666667
  2005 Q2,6.495516684,0.051466667,0.059733333
  2005 Q3,6.203350297,0.050933333,0.0598
  2005 Q4,6.920967065,0.0538,0.063366667
  2006 Q1,7.071963469,0.0539,0.063066667
  2006 Q2,6.888171794,0.058933333,0.067366667
  2006 Q3,7.140696665,0.0568,0.065933333
  2006 Q4,6.370517493,0.053866667,0.0628
  2007 Q1,5.68601339,0.053633333,0.062966667
  2007 Q2,5.372216486,0.055766667,0.064933333
  2007 Q3,4.596431534,0.057533333,0.0663
  2007 Q4,4.319755927,0.0553,0.0651
  2008 Q1,3.832737772,0.054566667,0.0675
  2008 Q2,3.667455922,0.056,0.0699
  2008 Q3,4.033428561,0.056533333,0.072066667
  2008 Q4,3.682710091,0.058166667,0.0884
  2009 Q1,3.52897881,0.052733333,0.082133333
  2009 Q2,3.466985633,0.055133333,0.079833333
  2009 Q3,3.681538279,0.052666667,0.0666
  2009 Q4,4.123596916,0.052,0.063266667
  2010 Q1,4.439292939,0.052933333,0.062866667
  2010 Q2,4.506405354,0.050433333,0.061766667
  2010 Q3,4.906146363,0.0458,0.057766667
  2010 Q4,4.766008326,0.048566667,0.059133333
  2011 Q1,4.529524884,0.0513,0.0609
  2011 Q2,5.023642636,0.050366667,0.0585
  2011 Q3,5.080733926,0.044633333,0.054633333
  2011 Q4,5.176537036,0.039266667,0.052533333
  2012 Q1,5.23071019,0.038966667,0.052
  2012 Q2,5.294515823,0.038,0.050933333
  2012 Q3,5.129920977,0.034566667,0.048733333
  2012 Q4,5.297873517,0.0354,0.045733333
  2013 Q1,5.671025484,0.038766667,0.0481
  2013 Q2,5.735819906,0.039633333,0.048366667
  2013 Q3,5.620649819,0.045066667,0.054033333
  2013 Q4,5.601176224,0.045933333,0.053566667
  2014 Q1,5.127694443,0.0444,0.051166667
  2014 Q2,5.536160615,0.042166667,0.0482
  2014 Q3,5.854159673,0.041166667,0.0474
  2014 Q4,5.842736784,0.038766667,0.0474
  2015 Q1,5.509522817,0.0357,0.045
  2015 Q2,5.369107456,0.038966667,0.048333333
  2015 Q3,5.449282206,0.040866667,0.052433333
  2015 Q4,5.19580249,0.039933333,0.0542
  2016 Q1,5.131992338,0.039266667,0.053066667
  2016 Q2,4.761015175,0.0359,0.046666667
  2016 Q3,4.726323693,0.033366667,0.042566667
  2016 Q4,4.628071574,0.0381,0.0464
  2017 Q1,4.697689886,0.0396,0.0466
  2017 Q2,4.864567114,0.038,0.044966667
  2017 Q3,4.844255954,0.036533333,0.043333333
  2017 Q4,5.108594447,0.0356,0.0427
  2018 Q1,5.664775073,0.037466667,0.0447
  2018 Q2,6.161741121,0.039366667,0.047766667
  2018 Q3,6.660188394,0.0391,0.048133333
  2018 Q4,6.837960977,0.041266667,0.0514
  2019 Q1,6.427289416,0.0383,0.0497
  2019 Q2,6.594186113,0.035933333,0.045966667
  2019 Q3,6.61069902,0.031,0.0402
  2019 Q4,6.725491569,0.030266667,0.039133333
  2020 Q1,5.966862458,0.029133333,0.0389
  2020 Q2,5.209505899,0.024566667,0.039066667
  2020 Q3,6.879608249,0.022333333,0.033133333