| United States Treasury Notes 3.5%
| - | 2.27% | - | - | 282,657,000 |
| United States Treasury Notes 3.75%
| - | 1.53% | - | - | 187,660,000 |
| United States Treasury Notes 4.625%
| - | 1.44% | - | - | 176,562,000 |
| United States Treasury Notes 3.875%
| - | 1.43% | - | - | 175,660,000 |
| United States Treasury Notes 4.5%
| - | 1.42% | - | - | 175,030,000 |
| United States Treasury Notes 3.375%
| - | 1.39% | - | - | 172,801,000 |
| United States Treasury Notes 4%
| - | 1.39% | - | - | 172,880,000 |
| United States Treasury Notes 3.75%
| - | 1.38% | - | - | 172,762,000 |
| United States Treasury Notes 3.5%
| - | 1.38% | - | - | 172,421,000 |
| United States Treasury Notes 3.5%
| - | 1.38% | - | - | 172,103,000 |