| United States Treasury Bonds 4.75%
| - | 5.05% | - | - | 326,300,000 |
| United States Treasury Bonds 4.625%
| - | 5.03% | - | - | 331,500,000 |
| United States Treasury Bonds 4.625%
| - | 4.76% | - | - | 313,900,000 |
| United States Treasury Bonds 4.5%
| - | 4.75% | - | - | 319,500,000 |
| United States Treasury Bonds 4.25%
| - | 4.74% | - | - | 333,000,000 |
| United States Treasury Bonds 4.25%
| - | 4.72% | - | - | 331,300,000 |
| United States Treasury Bonds 4.75%
| - | 4.36% | - | - | 282,150,000 |
| United States Treasury Bonds 4.75%
| - | 3.93% | - | - | 253,600,000 |
| United States Treasury Bonds 4.125%
| - | 3.49% | - | - | 250,550,000 |
| United States Treasury Bonds 4%
| - | 2.99% | - | - | 218,500,000 |