Sensitivity of Class EO to Prepayments Assumed Price 73.25% PSA Prepayment Assumption Rates 100% 295% 350% 600% 5.6% 5.6% 5.6% 8.1% Sensitivity of Class IA to Prepayments Assumed Price 0.03125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.520% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.525%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.530% and above  ........................ ** ** ** ** Sensitivity of Class IB to Prepayments Assumed Price 0.03125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.510% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.515%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.520% and above  ........................ ** ** ** ** Sensitivity of Class IC to Prepayments Assumed Price 0.03125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.500% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.505%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.510% and above  ........................ ** ** ** ** Sensitivity of Class ID to Prepayments Assumed Price 0.0625%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.47% and below  .......................... 27.6% 17.4% 14.5% 0.9% 6.48%................................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.49% 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-35