| Day | Rate | Set date |
|---|---|---|
| 1 September | 14.4000 | .. |
| 2 September | 14.2100 | .. |
| 5 September | 13.9900 | .. |
| 6 September | 13.7800 | .. |
| 7 September | 13.5000 | .. |
| 8 September | 13.5900 | .. |
| 9 September | 13.7200 | .. |
| 12 September | 12.9900 | .. |
| 13 September | 13.6000 | .. |
| 14 September | 14.4000 | .. |
| 15 September | 13.9500 | .. |
| 16 September | 13.7400 | .. |
| 19 September | 13.4600 | .. |
| 20 September | 13.6000 | .. |
| 21 September | 13.5200 | .. |
| 22 September | 13.5800 | .. |
| 23 September | 13.5200 | .. |
| 26 September | 13.4300 | .. |
| 27 September | 12.9800 | .. |
| 28 September | 12.9700 | .. |
| 29 September | 12.7300 | .. |
| 30 September | 12.2400 | .. |