| Day | Rate | Set date |
|---|---|---|
| 1 August | 11.5500 | .. |
| 4 August | 13.2900 | .. |
| 5 August | 15.0200 | .. |
| 6 August | 14.9700 | .. |
| 7 August | 15.3200 | .. |
| 8 August | 14.8300 | .. |
| 11 August | 14.9100 | .. |
| 12 August | 15.3500 | .. |
| 13 August | 15.2800 | .. |
| 14 August | 15.4200 | .. |
| 15 August | 15.8200 | .. |
| 18 August | 15.6100 | .. |
| 19 August | 14.8700 | .. |
| 20 August | 15.2600 | .. |
| 21 August | 15.4600 | .. |
| 22 August | 15.4900 | .. |
| 25 August | 15.5100 | .. |
| 26 August | 15.8300 | .. |
| 27 August | 15.7900 | .. |
| 28 August | 15.8100 | .. |
| 29 August | 15.9000 | .. |