| Day | Rate | Set date |
|---|---|---|
| 1 September | 67.7200 | .. |
| 2 September | 66.0600 | .. |
| 5 September | 64.8500 | .. |
| 6 September | 64.6700 | .. |
| 7 September | 62.8900 | .. |
| 8 September | 63.0800 | .. |
| 9 September | 62.8400 | .. |
| 12 September | 61.8000 | .. |
| 13 September | 61.6100 | .. |
| 14 September | 63.3700 | .. |
| 15 September | 63.1600 | .. |
| 16 September | 61.8100 | .. |
| 19 September | 65.6100 | .. |
| 20 September | 64.2000 | .. |
| 21 September | 64.7300 | .. |
| 22 September | 64.6000 | .. |
| 23 September | 62.4400 | .. |
| 26 September | 63.9300 | .. |
| 27 September | 62.9700 | .. |
| 28 September | 63.9300 | .. |
| 29 September | 63.8400 | .. |
| 30 September | 63.4800 | .. |