Security Group 1 CPR Prepayment Assumption Rates Class E Class F Class Z Class IO Distribution Date 0% 5% 15% 25% 40% 0% 5% 15% 25% 40% 0% 5% 15% 25% 40% 0% 5% 15% 25% 40% Initial Percent .................. 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 June 2008 .......................... 100 100 100 100 100 100 100 100 100 100 105 105 105 105 105 97 96 94 91 87 June 2009 .......................... 100 100 100 97 57 100 100 100 100 100 110 110 110 110 110 94 89 80 71 59 June 2010 .......................... 100 100 80 51 51 100 100 100 100 100 115 115 115 115 115 91 82 66 52 35 June 2011 .......................... 100 100 51 51 48 100 100 100 100 93 120 120 120 120 120 88 75 55 38 21 June 2012 .......................... 100 89 51 51 24 100 100 100 100 47 126 126 126 126 126 85 69 45 28 12 June 2013 .......................... 100 71 51 45 10 100 100 100 88 19 132 132 132 132 132 83 64 37 20 7 June 2014 .......................... 100 55 51 30 1 100 100 100 59 3 138 138 138 138 138 80 59 31 15 4 June 2015 .......................... 100 51 51 19 0 100 100 100 37 0 145 145 145 145 92 78 55 25 11 2 June 2016 .......................... 100 51 46 11 0 100 100 90 21 0 152 152 152 152 54 77 51 21 8 1 June 2017 .......................... 100 51 36 4 0 100 100 70 9 0 159 159 159 159 32 75 47 18 6 1 June 2018 .......................... 98 51 27 0 0 100 100 54 0 0 166 166 166 161 19 73 44 15 4 0 June 2019 .......................... 91 51 20 0 0 100 100 39 0 0 174 174 174 118 11 71 41 12 3 0 June 2020 .......................... 84 51 14 0 0 100 100 27 0 0 183 183 183 86 6 69 38 10 2 0 June 2021 .......................... 77 51 9 0 0 100 100 17 0 0 191 191 191 63 4 68 35 8 2 0 June 2022 .......................... 71 51 4 0 0 100 100 8 0 0 200 200 200 46 2 66 32 7 1 0 June 2023 .......................... 63 51 0 0 0 100 100 1 0 0 210 210 210 33 1 64 30 6 1 0 June 2024 .......................... 56 51 0 0 0 100 100 0 0 0 220 220 176 24 1 62 27 5 1 0 June 2025 .......................... 51 51 0 0 0 100 100 0 0 0 230 230 145 18 0 60 25 4 0 0 June 2026 .......................... 51 45 0 0 0 100 87 0 0 0 241 241 119 13 0 58 23 3 0 0 June 2027 .......................... 51 38 0 0 0 100 75 0 0 0 252 252 97 9 0 56 21 3 0 0 June 2028 .......................... 51 33 0 0 0 100 64 0 0 0 264 264 79 7 0 53 19 2 0 0 June 2029 .......................... 51 27 0 0 0 100 52 0 0 0 277 277 64 5 0 51 17 2 0 0 June 2030 .......................... 51 21 0 0 0 100 42 0 0 0 290 290 52 3 0 48 16 1 0 0 June 2031 .......................... 51 16 0 0 0 100 32 0 0 0 304 304 42 2 0 46 14 1 0 0 June 2032 .......................... 51 11 0 0 0 100 22 0 0 0 318 318 34 2 0 43 13 1 0 0 June 2033 .......................... 51 6 0 0 0 100 13 0 0 0 333 333 27 1 0 40 11 1 0 0 June 2034 .......................... 51 2 0 0 0 100 3 0 0 0 349 349 21 1 0 37 10 1 0 0 June 2035 .......................... 51 0 0 0 0 100 0 0 0 0 365 326 16 1 0 34 9 0 0 0 June 2036 .......................... 51 0 0 0 0 100 0 0 0 0 383 281 13 0 0 31 7 0 0 0 June 2037 .......................... 46 0 0 0 0 90 0 0 0 0 401 238 10 0 0 28 6 0 0 0 June 2038 .......................... 36 0 0 0 0 70 0 0 0 0 420 199 7 0 0 24 5 0 0 0 June 2039 .......................... 25 0 0 0 0 49 0 0 0 0 440 163 5 0 0 21 4 0 0 0 June 2040 .......................... 14 0 0 0 0 27 0 0 0 0 461 128 4 0 0 17 3 0 0 0 June 2041 .......................... 2 0 0 0 0 5 0 0 0 0 482 96 2 0 0 14 3 0 0 0 June 2042 .......................... 0 0 0 0 0 0 0 0 0 0 377 67 2 0 0 10 2 0 0 0 June 2043 .......................... 0 0 0 0 0 0 0 0 0 0 291 49 1 0 0 8 1 0 0 0 June 2044 .......................... 0 0 0 0 0 0 0 0 0 0 208 33 1 0 0 6 1 0 0 0 June 2045 .......................... 0 0 0 0 0 0 0 0 0 0 121 18 0 0 0 3 0 0 0 0 June 2046 .......................... 0 0 0 0 0 0 0 0 0 0 45 7 0 0 0 1 0 0 0 0 June 2047 .......................... 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 June 2048 .......................... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Weighted Average Life (years)  ..................   23.3    14.3 7.4 5.1 3.5 31.9 22.4 11.6 7.7 5.1 36.7 32.0 20.9 14.1 9.1 20.6 12.0 6.0 4.1 2.8 S-30