| Month | Curve |
|---|---|
| 4/14 | -8.19 |
| 5/14 | -8.91 |
| 6/14 | -8.70 |
| 7/14 | -9.03 |
| 8/14 | -9.05 |
| 9/14 | -8.72 |
| Month | Curve | 4/15 | -8.91 |
| 5/15 | -10.11 |
| 6/15 | -7.03 |
| 7/15 | -9.21 |
| 8/15 | -8.82 |
| 9/15 | -8.54 |
| 10/15 | -8.70 |
| Month | Curve | 4/16 | -9.12 |
| 5/16 | -7.17 |
| 6/16 | -4.29 |
| 7/16 | -7.31 |
| 8/16 | -6.79 |
| 9/16 | -8.32 |
| 10/16 | -9.95 |
| Month | Curve | 4/17 | -9.55 |
| 5/17 | -8.86 |
| 6/17 | -8.96 |
| 7/17 | -8.12 |