| Day | Rate | Set date |
|---|---|---|
| 1 September | 12.5900 | .. |
| 2 September | 12.4600 | .. |
| 3 September | 13.4400 | .. |
| 4 September | 13.3100 | .. |
| 7 September | 13.0600 | .. |
| 8 September | 12.9900 | .. |
| 9 September | 12.7600 | .. |
| 10 September | 13.2700 | .. |
| 11 September | 12.9300 | .. |
| 14 September | 12.8500 | .. |
| 15 September | 13.0200 | .. |
| 16 September | 13.2600 | .. |
| 17 September | 13.5400 | .. |
| 18 September | 14.1700 | .. |
| 21 September | 14.3800 | .. |
| 22 September | 14.4900 | .. |
| 23 September | 14.5200 | .. |
| 24 September | 14.6800 | .. |
| 25 September | 14.4300 | .. |
| 28 September | 14.3500 | .. |
| 29 September | 14.6100 | .. |
| 30 September | 14.6800 | .. |