| United States Treasury Bonds 4.75%
| - | 5.13% | - | - | 338,300,000 |
| United States Treasury Bonds 4.625%
| - | 5.04% | - | - | 338,900,000 |
| United States Treasury Bonds 4.625%
| - | 5.01% | - | - | 337,000,000 |
| United States Treasury Bonds 4.5%
| - | 4.88% | - | - | 335,500,000 |
| United States Treasury Bonds 4.25%
| - | 4.73% | - | - | 339,000,000 |
| United States Treasury Bonds 4.25%
| - | 4.69% | - | - | 336,300,000 |
| United States Treasury Bonds 4.75%
| - | 4.28% | - | - | 282,150,000 |
| United States Treasury Bonds 4.75%
| - | 3.85% | - | - | 253,600,000 |
| United States Treasury Bonds 4.125%
| - | 3.42% | - | - | 250,550,000 |
| United States Treasury Bonds 4%
| - | 2.93% | - | - | 218,500,000 |