| Day | Rate | Set date |
|---|---|---|
| 1 September | 67.7300 | .. |
| 2 September | 67.6600 | .. |
| 3 September | 67.1200 | .. |
| 4 September | 66.8200 | .. |
| 7 September | 66.5300 | .. |
| 8 September | 69.4200 | .. |
| 9 September | 69.8300 | .. |
| 10 September | 69.8600 | .. |
| 11 September | 67.6900 | .. |
| 14 September | 67.4400 | .. |
| 15 September | 67.3500 | .. |
| 16 September | 71.6700 | .. |
| 17 September | 71.5500 | .. |
| 18 September | 71.3200 | .. |
| 21 September | 68.6900 | .. |
| 22 September | 70.5300 | .. |
| 23 September | 67.9900 | .. |
| 24 September | 64.8200 | .. |
| 25 September | 65.1100 | .. |
| 28 September | 65.5400 | .. |
| 29 September | 65.4900 | .. |
| 30 September | 69.0700 | .. |