| Day | Rate | Set date |
|---|---|---|
| 1 September | 69.1500 | .. |
| 4 September | 67.7100 | .. |
| 5 September | 68.0900 | .. |
| 6 September | 66.9300 | .. |
| 7 September | 66.5300 | .. |
| 8 September | 65.3300 | .. |
| 11 September | 64.5500 | .. |
| 12 September | 62.9900 | .. |
| 13 September | 62.9900 | .. |
| 14 September | 62.2400 | .. |
| 15 September | 63.3300 | .. |
| 18 September | 64.0500 | .. |
| 19 September | 62.1700 | .. |
| 20 September | 60.4700 | .. |
| 21 September | 61.3400 | .. |
| 22 September | 60.4100 | .. |
| 25 September | 60.8000 | .. |
| 26 September | 60.1200 | .. |
| 27 September | 62.2100 | .. |
| 28 September | 62.5400 | .. |
| 29 September | 62.4800 | .. |