| Day | Rate | Set date |
|---|---|---|
| 2 September | 21.9900 | .. |
| 3 September | 22.2100 | .. |
| 4 September | 22.1100 | .. |
| 5 September | 22.1600 | .. |
| 6 September | 22.5400 | .. |
| 9 September | 22.6100 | .. |
| 10 September | 22.8800 | .. |
| 11 September | 23.5800 | .. |
| 12 September | 23.8700 | .. |
| 13 September | 24.1200 | .. |
| 16 September | 21.6000 | .. |
| 17 September | 21.7100 | .. |
| 18 September | 22.3100 | .. |
| 19 September | 21.9100 | .. |
| 20 September | 21.9900 | .. |
| 23 September | 22.2600 | .. |
| 24 September | 22.9600 | .. |
| 25 September | 23.2000 | .. |
| 26 September | 22.9300 | .. |
| 27 September | 23.4700 | .. |
| 30 September | 23.2100 | .. |