| Day | Rate | Set date |
|---|---|---|
| 1 August | 18.0300 | .. |
| 2 August | 18.2800 | .. |
| 3 August | 18.2100 | .. |
| 4 August | 18.0300 | .. |
| 7 August | 17.9100 | .. |
| 8 August | 18.1200 | .. |
| 9 August | 18.2100 | .. |
| 10 August | 18.5900 | .. |
| 11 August | 18.4800 | .. |
| 14 August | 18.5800 | .. |
| 15 August | 18.6800 | .. |
| 16 August | 18.9700 | .. |
| 17 August | 18.6800 | .. |
| 18 August | 18.8000 | .. |
| 21 August | 19.0800 | .. |
| 22 August | 19.0800 | .. |
| 23 August | 18.8000 | .. |
| 24 August | 18.6100 | .. |
| 25 August | 18.5100 | .. |
| 28 August | 18.6400 | .. |
| 29 August | 18.6400 | .. |
| 30 August | 18.8300 | .. |
| 31 August | 18.8300 | .. |