| United States Treasury Bonds 4.625%
| - | 5.00% | - | - | 127,901,000 |
| United States Treasury Notes 4.125%
| - | 4.74% | - | - | 118,260,000 |
| United States Treasury Bonds 4.625%
| - | 4.18% | - | - | 106,065,000 |
| United States Treasury Bonds 4.75%
| - | 3.65% | - | - | 91,519,000 |
| United States Treasury Notes 4.25%
| - | 3.19% | - | - | 79,179,000 |
| United States Treasury Bonds 4.875%
| - | 2.86% | - | - | 70,228,000 |
| United States Treasury Notes 4.125%
| - | 2.81% | - | - | 70,823,000 |
| United States Treasury Notes 3.75%
| - | 2.30% | - | - | 58,256,000 |
| United States Treasury Notes 4.125%
| - | 2.26% | - | - | 57,385,000 |
| United States Treasury Notes 3.625%
| - | 1.84% | - | - | 47,016,000 |