Sensitivity of Class IB to Prepayments Assumed Price 20.0625%* PSA Prepayment Assumption Rates 100% 175% 300% 353% 400% 3.7% 3.7% 3.7% 0.1%   (5.2)% Sensitivity of Class IC to Prepayments Assumed Price 27.875%* PSA Prepayment Assumption Rates 100% 175% 300% 323% 400% 5.3% 5.3% 2.3% 0.0%   (7.6)% Sensitivity of Class IJ to Prepayments Assumed Price 20.1875%* PSA Prepayment Assumption Rates 100% 175% 300% 333% 400% 4.6% 4.6% 2.5% 0.0%   (5.8)% Sensitivity of Class IK to Prepayments Assumed Price 14.78125%* PSA Prepayment Assumption Rates 100% 175% 300% 366% 400% 2.9% 2.9% 2.9% 0.0%   (2.5)% Sensitivity of Class IL to Prepayments Assumed Price 42.25215%* PSA Prepayment Assumption Rates 100% 175% 300% 400% 682% 11.6% 11.6% 10.9% 8.8% 0.0% Sensitivity of Class IM to Prepayments Assumed Price 13.25%* PSA Prepayment Assumption Rates 100% 175% 300% 381% 400% 2.3% 2.3% 2.3% 0.0%   (1.0)% *  The price does not include accrued interest. Accrued interest has been added to the price in calculating the yields set forth in the table. S-39