| Day | Rate | Set date |
|---|---|---|
| 2 August | 81.3400 | .. |
| 3 August | 82.5500 | .. |
| 4 August | 82.4700 | .. |
| 5 August | 82.0100 | .. |
| 6 August | 80.7000 | .. |
| 9 August | 81.4800 | .. |
| 10 August | 80.2500 | .. |
| 11 August | 78.0200 | .. |
| 12 August | 75.7400 | .. |
| 13 August | 75.3900 | .. |
| 16 August | 75.2400 | .. |
| 17 August | 75.7700 | .. |
| 18 August | 75.4200 | .. |
| 19 August | 74.4300 | .. |
| 20 August | 73.4600 | .. |
| 23 August | 73.1000 | .. |
| 24 August | 71.6300 | .. |
| 25 August | 72.5200 | .. |
| 26 August | 73.3600 | .. |
| 27 August | 75.1700 | .. |
| 30 August | 74.7000 | .. |
| 31 August | 71.9200 | .. |