| United States Treasury Bonds 2%
| - | 4.84% | - | - | 3,680,312,300 |
| United States Treasury Bonds 1.875%
| - | 4.79% | - | - | 3,741,865,200 |
| United States Treasury Bonds 4.125%
| - | 4.61% | - | - | 2,268,563,600 |
| United States Treasury Bonds 4.75%
| - | 4.59% | - | - | 2,012,418,500 |
| United States Treasury Bonds 4.75%
| - | 4.55% | - | - | 1,991,723,000 |
| United States Treasury Bonds 4.625%
| - | 4.48% | - | - | 2,005,303,000 |
| United States Treasury Bonds 4.25%
| - | 4.28% | - | - | 2,062,913,600 |
| United States Treasury Bonds 4.25%
| - | 4.06% | - | - | 1,957,324,700 |
| United States Treasury Bonds 3.625%
| - | 3.93% | - | - | 2,093,726,100 |
| United States Treasury Bonds 4.625%
| - | 3.83% | - | - | 1,733,408,900 |