| United States Treasury Notes 1.875%
| - | 4.18% | - | - | 631,218,907 |
| United States Treasury Notes 2.125%
| - | 4.12% | - | - | 608,762,026 |
| United States Treasury Notes 1.875%
| - | 3.87% | - | - | 579,546,725 |
| United States Treasury Notes 1.75%
| - | 3.70% | - | - | 558,244,488 |
| United States Treasury Notes 1.125%
| - | 3.48% | - | - | 530,932,958 |
| United States Treasury Notes 1.625%
| - | 3.46% | - | - | 518,018,322 |
| United States Treasury Notes 1.125%
| - | 3.45% | - | - | 539,017,640 |
| United States Treasury Notes 1.375%
| - | 3.43% | - | - | 528,044,186 |
| United States Treasury Notes 0.625%
| - | 3.41% | - | - | 544,667,811 |
| United States Treasury Notes 1.625%
| - | 3.36% | - | - | 499,655,109 |