| Day | Rate | Set date |
|---|---|---|
| 3 August | 73.5500 | .. |
| 4 August | 74.2800 | .. |
| 5 August | 75.5100 | .. |
| 6 August | 74.8300 | .. |
| 7 August | 73.5900 | .. |
| 10 August | 73.5000 | .. |
| 11 August | 72.4600 | .. |
| 12 August | 72.8900 | .. |
| 13 August | 73.4800 | .. |
| 14 August | 72.4100 | .. |
| 17 August | 70.5400 | .. |
| 18 August | 72.3700 | .. |
| 19 August | 74.5900 | .. |
| 20 August | 73.3300 | .. |
| 21 August | 74.1900 | .. |
| 24 August | 74.2600 | .. |
| 25 August | 71.8200 | .. |
| 26 August | 71.6500 | .. |
| 27 August | 72.5100 | .. |
| 28 August | 72.7900 | .. |
| 31 August | 69.6500 | .. |