| Day | Rate | Set date |
|---|---|---|
| 3 September | 22.2400 | .. |
| 4 September | 21.8100 | .. |
| 5 September | 21.6900 | .. |
| 6 September | 21.5700 | .. |
| 9 September | 21.3300 | .. |
| 10 September | 21.4100 | .. |
| 11 September | 21.6400 | .. |
| 12 September | 21.5300 | .. |
| 13 September | 21.6800 | .. |
| 16 September | 21.8200 | .. |
| 17 September | 21.6200 | .. |
| 18 September | 21.8400 | .. |
| 19 September | 21.7600 | .. |
| 20 September | 21.9700 | .. |
| 23 September | 22.0700 | .. |
| 24 September | 22.1900 | .. |
| 25 September | 22.2100 | .. |
| 26 September | 22.2100 | .. |
| 27 September | 22.3200 | .. |
| 30 September | 22.2300 | .. |