| Day | Rate | Set date |
|---|---|---|
| 2 August | 72.8900 | .. |
| 3 August | 72.4100 | .. |
| 4 August | 70.3800 | .. |
| 5 August | 71.2900 | .. |
| 6 August | 70.7000 | .. |
| 9 August | 69.0400 | .. |
| 10 August | 70.6300 | .. |
| 11 August | 71.4400 | .. |
| 12 August | 71.3100 | .. |
| 13 August | 70.5900 | .. |
| 16 August | 69.5100 | .. |
| 17 August | 69.0300 | .. |
| 18 August | 68.2300 | .. |
| 19 August | 66.4500 | .. |
| 20 August | 65.1800 | .. |
| 23 August | 68.7500 | .. |
| 24 August | 71.0500 | .. |
| 25 August | 72.2500 | .. |
| 26 August | 71.0700 | .. |
| 27 August | 72.7000 | .. |
| 30 August | 73.4100 | .. |
| 31 August | 72.9900 | .. |