| Day | Rate | Set date |
|---|---|---|
| 1 August | 25.0100 | .. |
| 2 August | 25.3100 | .. |
| 5 August | 24.8900 | .. |
| 6 August | 25.5300 | .. |
| 7 August | 24.9500 | .. |
| 8 August | 25.1100 | .. |
| 9 August | 25.3400 | .. |
| 12 August | 26.0400 | .. |
| 13 August | 26.1500 | .. |
| 14 August | 26.3800 | .. |
| 15 August | 26.8000 | .. |
| 16 August | 27.0000 | .. |
| 19 August | 27.2600 | .. |
| 20 August | 27.1000 | .. |
| 21 August | 27.4100 | .. |
| 22 August | 27.0200 | .. |
| 23 August | 26.9900 | .. |
| 27 August | 27.2200 | .. |
| 28 August | 26.9500 | .. |
| 29 August | 27.5200 | .. |
| 30 August | 27.4700 | .. |