| United States Treasury Notes 1.875%
| - | 4.15% | - | - | 645,921,211 |
| United States Treasury Notes 2.125%
| - | 4.10% | - | - | 624,006,578 |
| United States Treasury Notes 1.875%
| - | 3.86% | - | - | 594,054,689 |
| United States Treasury Notes 1.75%
| - | 3.68% | - | - | 572,223,385 |
| United States Treasury Notes 1.125%
| - | 3.47% | - | - | 544,231,374 |
| United States Treasury Notes 1.625%
| - | 3.45% | - | - | 530,860,752 |
| United States Treasury Notes 1.125%
| - | 3.43% | - | - | 551,334,369 |
| United States Treasury Notes 1.375%
| - | 3.41% | - | - | 539,821,085 |
| United States Treasury Notes 0.625%
| - | 3.40% | - | - | 558,127,041 |
| United States Treasury Notes 1.625%
| - | 3.34% | - | - | 511,608,086 |