| United States Treasury Bonds 4.75%
| - | 5.11% | - | - | 338,300,000 |
| United States Treasury Bonds 4.625%
| - | 5.02% | - | - | 338,900,000 |
| United States Treasury Bonds 4.625%
| - | 4.99% | - | - | 337,000,000 |
| United States Treasury Bonds 4.5%
| - | 4.97% | - | - | 342,700,000 |
| United States Treasury Bonds 4.25%
| - | 4.80% | - | - | 345,000,000 |
| United States Treasury Bonds 4.25%
| - | 4.77% | - | - | 343,300,000 |
| United States Treasury Bonds 4.75%
| - | 4.26% | - | - | 282,150,000 |
| United States Treasury Bonds 4.75%
| - | 3.83% | - | - | 253,600,000 |
| United States Treasury Bonds 4.125%
| - | 3.41% | - | - | 250,550,000 |
| United States Treasury Bonds 4%
| - | 2.92% | - | - | 218,500,000 |