Sensitivity of Class GU to Prepayments Assumed Price 138.81446%* PSA Prepayment Assumption Rates LIBOR 100% 270% 300% 550% 4.2375% .................................... 13.8% 11.5% 11.0% 7.7% 5.2375% .................................... 6.8% 4.4% 4.0% 0.7% 6.2375% ....................................    (0.3)% (2.6)% (3.0)% (6.3)% 6.5500% and above ................    (2.6)% (4.7)% (5.1)% (8.4)% Sensitivity of Class GV to Prepayments Assumed Price 140.45609%* PSA Prepayment Assumption Rates LIBOR 100% 270% 300% 550% 4.2375% .................................... 14.0% 11.6% 11.1% 7.7% 5.2375% .................................... 6.8% 4.4% 4.0% 0.6% 6.2375% ....................................    (0.4)% (2.7)% (3.1)% (6.5)% 6.5500% and above ................    (2.7)% (4.9)% (5.3)% (8.7)% Sensitivity of Class GW to Prepayments Assumed Price 142.09772%* PSA Prepayment Assumption Rates LIBOR 100% 270% 300% 550% 4.2375% .................................... 14.2% 11.7% 11.2% 7.7% 5.2375% .................................... 6.9% 4.4% 4.0% 0.4% 6.2375% ....................................    (0.4)% (2.8)% (3.2)% (6.7)% 6.5500% and above ................    (2.8)% (5.0)% (5.4)% (8.9)% Sensitivity of Class GX to Prepayments Assumed Price 143.73936%* PSA Prepayment Assumption Rates LIBOR 100% 270% 300% 550% 4.2375% .................................... 14.4% 11.8% 11.3% 7.7% 5.2375% .................................... 7.0% 4.4% 4.0% 0.3% 6.2375% ....................................    (0.5)% (2.9)% (3.3)% (7.0)% 6.5500% and above ................    (2.9)% (5.2)% (5.6)% (9.2)% Sensitivity of Class IF to Prepayments Assumed Price 0.43151%* PSA Prepayment Assumption Rates 100% 270% 300% 550% 5.1% 5.1% 5.1% 5.1% *    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-34