| Federal National Mortgage Association 2%
| - | 4.89% | - | - | 684,108,000 |
| Federal National Mortgage Association 6%
| - | 4.72% | - | - | 523,966,000 |
| Federal National Mortgage Association 2.5%
| - | 4.70% | - | - | 628,977,000 |
| United States Treasury Notes 0%
| - | 3.08% | - | - | 350,269,000 |
| United States Treasury Notes 0%
| - | 2.79% | - | - | 317,001,000 |
| Government National Mortgage Association 6%
| - | 2.66% | - | - | 296,287,000 |
| Federal National Mortgage Association 6.5%
| - | 2.54% | - | - | 279,058,000 |
| United States Treasury Notes 0%
| - | 2.37% | - | - | 269,381,000 |
| United States Treasury Notes 0%
| - | 2.23% | - | - | 253,844,000 |
| United States Treasury Notes 0%
| - | 2.08% | - | - | 236,942,000 |