| Net Income | 446.67 | 414.84 | 308.09 | 159.11 | 152.66 | 88.42 | |
| Depreciation & Amortization | 5.8 | 5.8 | 3.27 | 2.72 | 2.31 | 1.57 | |
| Gain (Loss) on Sale of Investments | -50.72 | -50.72 | -21.13 | 26.9 | -25.64 | -20.39 | |
| Stock-Based Compensation | 14.15 | 14.15 | 9.36 | 6.68 | 4.84 | 3.58 | |
| Change in Accounts Receivable | 3.19 | 3.19 | -37.46 | -34.75 | -22.36 | -14.16 | |
| Change in Accounts Payable | 8.94 | 8.94 | 12.52 | 8.11 | 10.1 | 3.09 | |
| Change in Unearned Revenue | 127.1 | 127.1 | 201.67 | 151.95 | 86.74 | 73.61 | |
| Change in Income Taxes | -0.36 | -0.36 | 0.74 | 7.52 | -3.88 | -1.61 | |
| Change in Insurance Reserves / Liabilities | 592.79 | 592.79 | 454.47 | 357.06 | 245.33 | 175.96 | |
| Change in Other Net Operating Assets | -114.72 | -114.72 | -35.48 | -93.66 | -32.43 | -22.36 | |
| Other Operating Activities | -26.08 | -3.83 | -9.43 | -14.19 | -0.58 | 0.62 | |
| Operating Cash Flow | 985.88 | 976.3 | 859.84 | 557.82 | 407.04 | 279.97 | |
| Operating Cash Flow Growth | 6.52% | 13.54% | 54.14% | 37.04% | 45.39% | 56.97% | |
| Capital Expenditures | -45.77 | -23.94 | -6.61 | -6.9 | -5.92 | -32.88 | |
| Sale of Property, Plant & Equipment | - | - | - | - | - | 5.08 | |
| Investment in Securities | -922.44 | -935.87 | -914.21 | -625.05 | -346.04 | -351.64 | |
| Investing Cash Flow | -968.21 | -960.13 | -860.89 | -708.57 | -351.96 | -379.43 | |
| Long-Term Debt Issued | - | - | 50 | 198 | - | 25.7 | |
| Total Debt Repaid | - | - | -62 | -43 | - | - | |
| Net Debt Issued (Repaid) | - | - | -12 | 155 | - | 25.7 | |
| Issuance of Common Stock | 0.66 | 1.33 | 0.88 | 48.59 | 0.98 | 60.32 | |
| Repurchases of Common Stock | -36.36 | -17.05 | -4.28 | -3.29 | -2.1 | -1.8 | |
| Common Dividends Paid | -14.88 | -13.94 | -12.95 | -11.93 | -10.02 | -8.07 | |
| Other Financing Activities | - | - | -0.16 | -2.38 | - | - | |
| Financing Cash Flow | -50.59 | -29.66 | -28.52 | 185.99 | -11.14 | 76.14 | |
| Net Cash Flow | -32.92 | -13.48 | -29.58 | 35.23 | 43.95 | -23.32 | |
| Free Cash Flow | 940.11 | 952.36 | 853.23 | 550.91 | 401.12 | 247.1 | |
| Free Cash Flow Growth | 2.65% | 11.62% | 54.87% | 37.34% | 62.33% | 55.67% | |
| Free Cash Flow Margin | 54.55% | 59.99% | 69.68% | 65.68% | 61.38% | 53.73% | |
| Free Cash Flow Per Share | 40.32 | 40.82 | 36.61 | 23.82 | 17.39 | 10.81 | |
| Cash Interest Paid | 10.3 | 10.3 | 10.5 | 2.4 | 0.9 | 0.8 | |
| Cash Income Tax Paid | 104.1 | 104.1 | 84.6 | 43.1 | 40.6 | 13 | |
| Levered Free Cash Flow | 907.16 | 940.84 | 906.17 | 471.79 | 422.31 | 253.11 | |
| Unlevered Free Cash Flow | 913.56 | 947.17 | 912.61 | 474.47 | 422.93 | 253.22 | |
| Change in Working Capital | 596.06 | 596.06 | 569.67 | 376.6 | 273.45 | 206.18 | |