| United States Treasury Notes 3.5%
| - | 2.23% | - | - | 271,157,000 |
| United States Treasury Notes 4.625%
| - | 1.51% | - | - | 180,633,000 |
| United States Treasury Notes 3.75%
| - | 1.44% | - | - | 173,132,000 |
| United States Treasury Notes 3.875%
| - | 1.43% | - | - | 172,111,000 |
| United States Treasury Notes 3.5%
| - | 1.42% | - | - | 173,435,000 |
| United States Treasury Notes 3.375%
| - | 1.42% | - | - | 172,348,000 |
| United States Treasury Notes 3.75%
| - | 1.41% | - | - | 172,638,000 |
| United States Treasury Notes 3.375%
| - | 1.39% | - | - | 168,678,000 |
| United States Treasury Notes 3.625%
| - | 1.39% | - | - | 168,178,000 |
| United States Treasury Notes 4.125%
| - | 1.36% | - | - | 164,440,000 |