| United States Treasury Notes 1.875%
| - | 4.09% | - | - | 627,942,824 |
| United States Treasury Notes 2.125%
| - | 4.03% | - | - | 606,625,048 |
| United States Treasury Notes 1.875%
| - | 3.79% | - | - | 577,514,686 |
| United States Treasury Notes 1.75%
| - | 3.62% | - | - | 556,280,164 |
| United States Treasury Notes 1.125%
| - | 3.42% | - | - | 529,081,794 |
| United States Treasury Notes 1.625%
| - | 3.40% | - | - | 516,082,850 |
| United States Treasury Notes 1.125%
| - | 3.38% | - | - | 535,970,449 |
| United States Treasury Notes 1.375%
| - | 3.36% | - | - | 524,782,737 |
| United States Treasury Notes 0.625%
| - | 3.35% | - | - | 542,573,457 |
| United States Treasury Notes 1.625%
| - | 3.29% | - | - | 497,366,900 |