| Day | Rate | Set date |
|---|---|---|
| 2 August | 71.2600 | .. |
| 3 August | 70.5600 | .. |
| 4 August | 68.1500 | .. |
| 5 August | 69.0900 | .. |
| 6 August | 68.2800 | .. |
| 9 August | 66.4800 | .. |
| 10 August | 68.2900 | .. |
| 11 August | 69.2500 | .. |
| 12 August | 69.0900 | .. |
| 13 August | 68.4400 | .. |
| 16 August | 67.2900 | .. |
| 17 August | 66.5900 | .. |
| 18 August | 65.4600 | .. |
| 19 August | 63.6900 | .. |
| 20 August | 62.3200 | .. |
| 23 August | 65.6400 | .. |
| 24 August | 67.5400 | .. |
| 25 August | 68.3600 | .. |
| 26 August | 67.4200 | .. |
| 27 August | 68.7400 | .. |
| 30 August | 69.2100 | .. |
| 31 August | 68.5000 | .. |