| Day | Rate | Set date |
|---|---|---|
| 4 September | 26.9300 | .. |
| 5 September | 26.9500 | .. |
| 6 September | 27.5800 | .. |
| 7 September | 28.0300 | .. |
| 10 September | 27.6300 | .. |
| 14 September | 29.5300 | .. |
| 17 September | 28.8100 | .. |
| 18 September | 27.7000 | .. |
| 19 September | 26.7200 | .. |
| 20 September | 26.5900 | .. |
| 21 September | 25.9700 | .. |
| 24 September | 22.0100 | .. |
| 25 September | 21.8100 | .. |
| 26 September | 22.3800 | .. |
| 27 September | 22.7400 | .. |
| 28 September | 23.4300 | .. |