Sensitivity of Class IH to Prepayments Assumed Price 0.125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.47% and below  .......................... 27.6% 17.4% 14.5% 0.9% 6.49%................................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.51% and above............................ ** ** ** ** Sensitivity of Class IL to Prepayments Assumed Price 0.15625%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.470% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.495%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.520% and above  ........................ ** ** ** ** Sensitivity of Class IS to Prepayments Assumed Price 0.03125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.490% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.495%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.500% and above  ........................ ** ** ** ** Sensitivity of Class IT to Prepayments Assumed Price 0.03125%* PSA Prepayment Assumption Rates LIBOR 100% 295% 350% 600% 6.480% and below ........................ 27.6% 17.4% 14.5% 0.9% 6.485%  ............................................ 9.1%   (1.8)%   (4.9)%   (19.9)% 6.490% 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-36