| United States Treasury Bonds 4.625%
| - | 5.10% | - | - | 346,900,000 |
| United States Treasury Bonds 4.75%
| - | 5.08% | - | - | 338,300,000 |
| United States Treasury Bonds 4.5%
| - | 5.08% | - | - | 352,700,000 |
| United States Treasury Bonds 4.625%
| - | 5.04% | - | - | 342,500,000 |
| United States Treasury Bonds 4.25%
| - | 4.82% | - | - | 349,300,000 |
| United States Treasury Bonds 4.25%
| - | 4.76% | - | - | 345,000,000 |
| United States Treasury Bonds 4.75%
| - | 4.23% | - | - | 282,150,000 |
| United States Treasury Bonds 4.75%
| - | 3.81% | - | - | 253,600,000 |
| United States Treasury Bonds 4.125%
| - | 3.39% | - | - | 250,550,000 |
| United States Treasury Bonds 3.625%
| - | 2.96% | - | - | 239,550,000 |