| Day | Rate | Set date |
|---|---|---|
| 3 August | 71.5800 | .. |
| 4 August | 71.4200 | .. |
| 5 August | 71.9700 | .. |
| 6 August | 71.9400 | .. |
| 7 August | 70.9300 | .. |
| 10 August | 70.6000 | .. |
| 11 August | 69.4500 | .. |
| 12 August | 70.1600 | .. |
| 13 August | 70.5200 | .. |
| 14 August | 67.5100 | .. |
| 17 August | 66.7500 | .. |
| 18 August | 69.1900 | .. |
| 19 August | 72.4200 | .. |
| 20 August | 72.5400 | .. |
| 21 August | 73.8900 | .. |
| 24 August | 74.3700 | .. |
| 25 August | 72.0500 | .. |
| 26 August | 71.4300 | .. |
| 27 August | 72.4900 | .. |
| 28 August | 72.7400 | .. |
| 31 August | 69.9600 | .. |