| Day | Rate | Set date |
|---|---|---|
| 2 July | 15.8700 | .. |
| 3 July | 15.9700 | .. |
| 4 July | 15.9800 | .. |
| 5 July | 15.9000 | .. |
| 6 July | 15.8600 | .. |
| 9 July | 15.9000 | .. |
| 10 July | 16.0700 | .. |
| 11 July | 16.3700 | .. |
| 12 July | 17.5000 | .. |
| 13 July | 17.4300 | .. |
| 16 July | 17.8400 | .. |
| 17 July | 18.1900 | .. |
| 18 July | 18.3600 | .. |
| 19 July | 18.5900 | .. |
| 20 July | 18.7500 | .. |
| 23 July | 19.2200 | .. |
| 24 July | 19.4200 | .. |
| 25 July | 19.1800 | .. |
| 26 July | 19.2600 | .. |
| 27 July | 19.2200 | .. |
| 30 July | 19.5000 | .. |
| 31 July | 19.8400 | .. |