| United States Treasury Notes 3.5%
| - | 2.22% | - | - | 263,027,000 |
| United States Treasury Notes 3.75%
| - | 1.45% | - | - | 170,608,000 |
| United States Treasury Notes 3.875%
| - | 1.43% | - | - | 167,492,000 |
| United States Treasury Notes 3.625%
| - | 1.42% | - | - | 167,983,000 |
| United States Treasury Notes 4.125%
| - | 1.42% | - | - | 166,630,000 |
| United States Treasury Notes 3.5%
| - | 1.41% | - | - | 167,386,000 |
| United States Treasury Notes 3.375%
| - | 1.40% | - | - | 165,814,000 |
| United States Treasury Notes 3.75%
| - | 1.40% | - | - | 162,702,000 |
| United States Treasury Notes 3.375%
| - | 1.34% | - | - | 158,358,000 |
| United States Treasury Notes 3.5%
| - | 1.33% | - | - | 155,700,000 |