Sensitivity of Class WO to Prepayments Assumed Price 86.625% PSA Prepayment Assumption Rates 355% 400% 600% 800% 4.3% 4.3% 4.3% 5.3% SECURITY GROUP 9 Sensitivity of Class EN to Prepayments Assumed Price 90.13087% PSA Prepayment Assumption Rates 290% 500% 530% 1000% 2.9% 2.9% 2.9% 4.5% Sensitivity of Class FN to Prepayments Assumed Price 5.43923%* PSA Prepayment Assumption Rates LIBOR 290% 500% 530% 1000% 0.25%..................................    (29.9)%    (29.9)%    (29.9)%    (65.3)% 1.25%.................................. 1.4% 1.4% 1.4%    (24.6)% 4.25%.................................. 76.0% 76.0% 76.0% 62.6% 7.20% and above.............. 153.1% 153.1% 153.1% 145.2% Sensitivity of Class NI to Prepayments Assumed Price 17.23945%* PSA Prepayment Assumption Rates 290% 500% 530% 564% 1000% 1.5% 1.5% 1.5% 0.0% (24.5)% Sensitivity of Class SN to Prepayments Assumed Price 20.41994%* PSA Prepayment Assumption Rates LIBOR 290% 500% 530% 1000% 0.25%.................................. 9.4% 9.4% 9.4% (14.7)% 1.25%.................................. 2.4% 2.4% 2.4% (23.4)% 4.25%..................................   (21.2)%   (21.2)%   (21.2)% (53.7)% 7.20% and above..............   **    **   ** ** * The price does not include accrued interest. Accrued interest has been added to the price in calculating the yields set forth in the table. **  Indicates that investors will suffer a loss of virtually all of their investment. S-37