| Day | Rate | Set date |
|---|---|---|
| 1 September | 17.4700 | .. |
| 2 September | 17.5200 | .. |
| 6 September | 17.6200 | .. |
| 7 September | 17.8100 | .. |
| 8 September | 17.6700 | .. |
| 9 September | 17.5300 | .. |
| 12 September | 17.3900 | .. |
| 13 September | 17.1200 | .. |
| 14 September | 16.7100 | .. |
| 15 September | 16.7000 | .. |
| 16 September | 16.8300 | .. |
| 19 September | 17.2100 | .. |
| 20 September | 17.2400 | .. |
| 21 September | 17.2200 | .. |
| 22 September | 17.6700 | .. |
| 23 September | 17.8300 | .. |
| 26 September | 17.6700 | .. |
| 27 September | 17.5500 | .. |
| 28 September | 17.6800 | .. |
| 29 September | 17.9800 | .. |
| 30 September | 18.3900 | .. |