Exhibit 7 Present Value of an Annuity of $1 at Compound Interest Periods 1 2 3 4 5 6 7 4% 0.96154 1.88609 277509 3.62990 445182 5.24214 6.00205 6.73274 7.43533 811090 44% 0.95694 1.87267 2.74896 3.58753 4.38998 5.15787 5.89270 6.59589 7.26879 7.91272 5% 0.95238 1.85941 2.72325 3.54595 4.32948 5.07569 5.78637 6.46321 7.10782 7.72173 5%% 0.94787 1.84632 2.69793 3.50515 4.27028 4.99553 5.68297 633457 6.95220 753763 6% 0.94340 1.83339 2.67301 3.46511 4.21236 4.91732 5.58238 6.20979 6.80169 736009 6%% 0.93897 1.82063 264848 3.42580 4.15568 4.84101 5.48452 6.08875 6.65610 7.18883 7% 0.93458 1.80802 2.62432 3.38721 4.10020 4.76654 5.38929 5.97130 6.51523 7.02358 10% 0.90909 1.73554 248685 3.16987 3.79079 435526 4.86842 5.33493 5.75902 6.14457 11% 0.90090 171252 244371 3.10245 3,69590 4.23054 471220 5.14612 5.53705 5.88923 12% 0.89286 1.69005 240183 3.03735 3.60478 4.11141 4.56376 4.96764 5.32825 5.65022 13% 0.88496 1.66810 236115 2.97447 351723 3.99755 442261 4.79677 5.13166 542624 B 9 10 Exhibit 7 Present Value of an Annuity of $1 at Compound Interest Periods 1 2 3 4 5 6 7 4% 0.96154 1.88609 277509 3.62990 445182 5.24214 6.00205 6.73274 7.43533 811090 44% 0.95694 1.87267 2.74896 3.58753 4.38998 5.15787 5.89270 6.59589 7.26879 7.91272 5% 0.95238 1.85941 2.72325 3.54595 4.32948 5.07569 5.78637 6.46321 7.10782 7.72173 5%% 0.94787 1.84632 2.69793 3.50515 4.27028 4.99553 5.68297 633457 6.95220 753763 6% 0.94340 1.83339 2.67301 3.46511 4.21236 4.91732 5.58238 6.20979 6.80169 736009 6%% 0.93897 1.82063 264848 3.42580 4.15568 4.84101 5.48452 6.08875 6.65610 7.18883 7% 0.93458 1.80802 2.62432 3.38721 4.10020 4.76654 5.38929 5.97130 6.51523 7.02358 10% 0.90909 1.73554 248685 3.16987 3.79079 435526 4.86842 5.33493 5.75902 6.14457 11% 0.90090 171252 244371 3.10245 3,69590 4.23054 471220 5.14612 5.53705 5.88923 12% 0.89286 1.69005 240183 3.03735 3.60478 4.11141 4.56376 4.96764 5.32825 5.65022 13% 0.88496 1.66810 236115 2.97447 351723 3.99755 442261 4.79677 5.13166 542624 B 9 10