<PAGE>
EXHIBIT 99.1
<TABLE>
<CAPTION>
CLASS A-7 AVAILABLE FUNDS CAP
-------------------------------------------- ----------------------------------------- -----------------------------------------
Pay Available* Available** Pay Available* Available** Pay Available* Available**
Period Date Funds Cap Funds Cap Period Date Funds Cap Funds Cap Period Date Funds Cap Funds Cap
-------------------------------------------- ----------------------------------------- -----------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
1 10/25/00 N/A N/A 25 10/25/02 13.05 14.20 49 10/25/04 13.11 18.62
2 11/25/00 10.32 10.31 26 11/25/02 12.67 13.79 50 11/25/04 12.69 18.02
3 12/25/00 10.70 10.65 27 12/25/02 13.17 14.34 51 12/25/04 13.11 18.65
4 01/25/01 10.39 10.31 28 01/25/03 12.79 13.93 52 01/25/05 12.69 18.05
5 02/25/01 10.46 10.34 29 02/25/03 12.85 14.18 53 02/25/05 12.69 18.20
6 03/25/01 11.69 11.52 30 03/25/03 14.29 16.28 54 03/25/05 14.05 20.55
7 04/25/01 10.66 10.46 31 04/25/03 12.97 15.21 55 04/25/05 12.69 18.93
8 05/25/01 11.06 10.81 32 05/25/03 13.11 15.39 56 05/25/05 13.11 19.56
9 06/25/01 10.75 10.46 33 06/25/03 12.69 14.92 57 06/25/05 12.69 18.93
10 07/25/01 11.16 10.81 34 07/25/03 13.11 15.42 58 07/25/05 13.11 19.56
11 08/25/01 10.88 10.49 35 08/25/03 12.69 15.11 59 08/25/05 12.69 18.93
12 09/25/01 10.99 10.55 36 09/25/03 12.69 15.56 60 09/25/05 12.69 18.93
13 10/25/01 10.96 10.46 37 10/25/03 13.11 16.52 61 10/25/05 13.11 19.56
14 11/25/01 10.67 10.13 38 11/25/03 12.69 15.99 62 11/25/05 12.69 18.93
15 12/25/01 11.24 10.61 39 12/25/03 13.11 16.55 63 12/25/05 13.11 19.56
16 01/25/02 11.12 10.43 40 01/25/04 12.69 16.02 64 01/25/06 12.69 18.93
17 02/25/02 11.22 10.63 41 02/25/04 12.69 16.21 65 02/25/06 12.69 18.93
18 03/25/02 12.47 12.05 42 03/25/04 13.56 17.81 66 03/25/06 14.05 20.96
19 04/25/02 11.30 11.13 43 04/25/04 12.69 17.09 67 04/25/06 12.69 18.93
20 05/25/02 11.71 11.72 44 05/25/04 13.11 17.66 68 05/25/06 13.11 19.56
21 06/25/02 11.42 11.60 45 06/25/04 12.69 17.12 69 06/25/06 12.69 18.93
22 07/25/02 11.84 12.02 46 07/25/04 13.11 17.69 70 07/25/06 13.11 19.56
23 08/25/02 11.71 12.02 47 08/25/04 12.69 17.28 71 08/25/06 12.69 18.93
24 09/25/02 12.20 12.89 48 09/25/04 12.69 17.65
-------------------------------------------- ----------------------------------------- -----------------------------------------
</TABLE>
* Assumes 1 month LIBOR is 6.62% and 6 month LIBOR is 6.78%.
** Assumes the 1month LIBOR and 6 month LIBOR instantaneously increase to a
level beyond the highest maximum obtainable rate on the adjustable rate mortgage
loans and run at the pricing speed to call.
