| Day | Rate | Set date |
|---|---|---|
| 1 September | 69.4700 | .. |
| 2 September | 67.5700 | .. |
| 6 September | 65.9600 | .. |
| 7 September | 64.3700 | .. |
| 8 September | 64.4900 | .. |
| 9 September | 64.0800 | .. |
| 12 September | 63.3400 | .. |
| 13 September | 63.1100 | .. |
| 14 September | 65.0900 | .. |
| 15 September | 64.7500 | .. |
| 16 September | 63.0000 | .. |
| 19 September | 67.3900 | .. |
| 20 September | 66.2300 | .. |
| 21 September | 66.8000 | .. |
| 22 September | 66.5000 | .. |
| 23 September | 64.1900 | .. |
| 26 September | 65.8200 | .. |
| 27 September | 65.0700 | .. |
| 28 September | 66.3500 | .. |
| 29 September | 66.7900 | .. |
| 30 September | 66.2400 | .. |