| United States Treasury Notes 3.5%
| - | 2.07% | - | - | 249,707,000 |
| United States Treasury Notes 3.375%
| - | 1.53% | - | - | 184,538,000 |
| United States Treasury Notes 3.625%
| - | 1.47% | - | - | 174,695,000 |
| United States Treasury Notes 3.875%
| - | 1.47% | - | - | 175,756,000 |
| United States Treasury Notes 3.75%
| - | 1.45% | - | - | 174,558,000 |
| United States Treasury Notes 3.5%
| - | 1.45% | - | - | 173,029,000 |
| United States Treasury Notes 3.875%
| - | 1.44% | - | - | 173,693,000 |
| United States Treasury Notes 4.25%
| - | 1.44% | - | - | 170,350,000 |
| United States Treasury Notes 3.375%
| - | 1.43% | - | - | 172,461,000 |
| United States Treasury Notes 4%
| - | 1.34% | - | - | 159,402,000 |