| Day | Rate | Set date |
|---|---|---|
| 1 September | 68.5900 | .. |
| 2 September | 69.9900 | .. |
| 3 September | 69.2900 | .. |
| 5 September | 68.7500 | .. |
| 6 September | 68.8000 | .. |
| 7 September | 68.3500 | .. |
| 8 September | 69.3000 | .. |
| 9 September | 68.1400 | .. |
| 10 September | 69.7200 | .. |
| 13 September | 70.4500 | .. |
| 14 September | 70.4600 | .. |
| 15 September | 72.6100 | .. |
| 16 September | 72.6100 | .. |
| 17 September | 71.9700 | .. |
| 20 September | 70.2900 | .. |
| 21 September | 70.5600 | .. |
| 22 September | 72.2300 | .. |
| 23 September | 73.3000 | .. |
| 24 September | 73.9800 | .. |
| 27 September | 75.4500 | .. |
| 28 September | 75.2900 | .. |
| 29 September | 74.8300 | .. |
| 30 September | 75.0300 | .. |