Security Group 7 PSA Prepayment Assumption Rates Distribution Date Class AB 0% 99%  170%   250%    400% Class AC 0% 99%  170%   250%    400% Class AD 0% 99%  170%   250%    400% Class AG 0% 99%  170%   250%    400% Initial Percent ..................    100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 June 2004 ..........................    100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 95 86 70 June 2005 ..........................    100 100 100 100 0 100 100 100 100 20 100 100 100 100 100 100 100 82 55 4 June 2006 ..........................    100 100 100 0 0 100 100 100 82 0 100 100 100 100 0 100 100 68 18 0 June 2007 ..........................    100 100 100 0 0 100 100 100 0 0 100 100 100 75 0 100 100 56 0 0 June 2008 ..........................    100 100 100 0 0 100 100 100 0 0 100 100 100 24 0 100 100 46 0 0 June 2009 ..........................    100 100 100 0 0 100 100 100 0 0 100 100 100 0 0 100 100 40 0 0 June 2010 ..........................    100 100 100 0 0 100 100 100 0 0 100 100 100 0 0 100 100 35 0 0 June 2011 ..........................    100 100 88 0 0 100 100 100 0 0 100 100 100 0 0 100 100 32 0 0 June 2012 ..........................    100 100 76 0 0 100 100 100 0 0 100 100 100 0 0 100 100 31 0 0 June 2013 ..........................    100 100 69 0 0 100 100 100 0 0 100 100 100 0 0 100 100 30 0 0 June 2014 ..........................    100 100 58 0 0 100 100 100 0 0 100 100 100 0 0 100 100 29 0 0 June 2015 ..........................    100 100 44 0 0 100 100 100 0 0 100 100 100 0 0 100 100 27 0 0 June 2016 ..........................    100 100 28 0 0 100 100 100 0 0 100 100 100 0 0 100 100 25 0 0 June 2017 ..........................    100 100 0 0 0 100 100 97 0 0 100 100 100 0 0 100 100 21 0 0 June 2018 ..........................    100 100 0 0 0 100 100 72 0 0 100 100 100 0 0 100 100 16 0 0 June 2019 ..........................    100 100 0 0 0 100 100 47 0 0 100 100 100 0 0 100 96 10 0 0 June 2020 ..........................    100 100 0 0 0 100 100 23 0 0 100 100 100 0 0 100 85 5 0 0 June 2021 ..........................    100 100 0 0 0 100 100 0 0 0 100 100 100 0 0 100 74 0 0 0 June 2022 ..........................    100 100 0 0 0 100 100 0 0 0 100 100 87 0 0 100 63 0 0 0 June 2023 ..........................    100 100 0 0 0 100 100 0 0 0 100 100 75 0 0 100 52 0 0 0 June 2024 ..........................    100 100 0 0 0 100 100 0 0 0 100 100 64 0 0 100 42 0 0 0 June 2025 ..........................    100 79 0 0 0 100 100 0 0 0 100 100 54 0 0 100 31 0 0 0 June 2026 ..........................    100 0 0 0 0 100 96 0 0 0 100 100 44 0 0 100 21 0 0 0 June 2027 ..........................    100 0 0 0 0 100 51 0 0 0 100 100 36 0 0 100 11 0 0 0 June 2028 ..........................    100 0 0 0 0 100 8 0 0 0 100 100 28 0 0 100 2 0 0 0 June 2029 ..........................    100 0 0 0 0 100 0 0 0 0 100 80 21 0 0 100 0 0 0 0 June 2030 ..........................    100 0 0 0 0 100 0 0 0 0 100 58 14 0 0 93 0 0 0 0 June 2031 ..........................    100 0 0 0 0 100 0 0 0 0 100 36 8 0 0 52 0 0 0 0 June 2032 .......................... 0 0 0 0 0 40 0 0 0 0 100 15 3 0 0 9 0 0 0 0 June 2033 .......................... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Weighted Average Life (years)  ..................   28.6    22.3    11.2 2.7 1.7 29.0 24.0 15.9 3.2 1.9 29.6 27.4 22.8 4.5 2.3 28.1 20.3 7.0 2.1 1.3 PSA Prepayment Assumption Rates Distribution Date Classes AH and AK 0% 99%  170%   250%    400% Classes EP, PC and PI 0% 99%  170%   250%    400% Class JA 0% 99%  170%   250%    400% Class JB 0% 99%  170%   250%    400% Initial Percent ..................    100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 June 2004 ..........................    100 100 92 79 54 100 100 100 100 100 100 100 91 91 91 100 100 100 100 100 June 2005 ..........................    100 100 74 32 0 100 100 100 100 100 100 100 72 72 72 100 100 100 100 100 June 2006 ..........................    100 100 51 0 0 100 100 100 100 100 100 100 47 47 0 100 100 100 100 0 June 2007 ..........................    100 100 33 0 0 100 100 100 100 100 100 100 27 27 0 100 100 100 100 0 June 2008 ..........................    100 100 19 0 0 100 100 100 100 100 100 100 9 9 0 100 100 100 100 0 June 2009 ..........................    100 100 9 0 0 100 100 100 100 100 100 100 0 0 0 100 100 90 59 0 June 2010 ..........................    100 100 2 0 0 100 100 100 100 100 100 100 0 0 0 100 100 65 0 0 June 2011 ..........................    100 100 0 0 0 100 100 100 100 100 100 100 0 0 0 100 100 46 0 0 June 2012 ..........................    100 100 0 0 0 100 100 100 100 100 100 100 0 0 0 100 100 33 0 0 June 2013 ..........................    100 100 0 0 0 100 100 100 100 100 100 92 0 0 0 100 100 12 0 0 June 2014 ..........................    100 100 0 0 0 100 100 100 100 77 100 74 0 0 0 100 100 0 0 0 June 2015 ..........................    100 100 0 0 0 100 100 100 100 57 100 49 0 0 0 100 100 0 0 0 June 2016 ..........................    100 100 0 0 0 100 100 100 100 42 100 19 0 0 0 100 100 0 0 0 June 2017 ..........................    100 100 0 0 0 100 100 100 100 31 100 0 0 0 0 100 62 0 0 0 June 2018 ..........................    100 100 0 0 0 100 100 100 100 22 100 0 0 0 0 100 0 0 0 0 June 2019 ..........................    100 94 0 0 0 100 86 86 86 16 100 0 0 0 0 100 0 0 0 0 June 2020 ..........................    100 78 0 0 0 100 69 69 69 12 100 0 0 0 0 100 0 0 0 0 June 2021 ..........................    100 61 0 0 0 100 56 56 56 8 100 0 0 0 0 100 0 0 0 0 June 2022 ..........................    100 45 0 0 0 100 45 45 45 6 100 0 0 0 0 100 0 0 0 0 June 2023 ..........................    100 28 0 0 0 100 35 35 35 4 100 0 0 0 0 100 0 0 0 0 June 2024 ..........................    100 12 0 0 0 100 28 28 28 3 100 0 0 0 0 100 0 0 0 0 June 2025 ..........................    100 0 0 0 0 100 21 21 21 2 100 0 0 0 0 100 0 0 0 0 June 2026 ..........................    100 0 0 0 0 100 16 16 16 1 100 0 0 0 0 100 0 0 0 0 June 2027 ..........................    100 0 0 0 0 100 12 12 12 1 100 0 0 0 0 100 0 0 0 0 June 2028 ..........................    100 0 0 0 0 50 9 9 9 1 100 0 0 0 0 100 0 0 0 0 June 2029 ..........................    100 0 0 0 0 6 6 6 6 0 37 0 0 0 0 100 0 0 0 0 June 2030 .......................... 89 0 0 0 0 4 4 4 4 0 0 0 0 0 0 0 0 0 0 0 June 2031 .......................... 28 0 0 0 0 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 June 2032 .......................... 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 June 2033 .......................... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Weighted Average Life (years)  ..................   27.7    18.7 3.3 1.6 1.0 25.1 19.4 19.4 19.4 13.4 25.9 11.8 3.0 3.0 2.2 26.4 14.2 8.0 6.1 2.9 S-29