| Day | Rate | Set date |
|---|---|---|
| 1 September | 71.5900 | .. |
| 2 September | 73.0300 | .. |
| 3 September | 72.6100 | .. |
| 6 September | 72.2200 | .. |
| 7 September | 71.6900 | .. |
| 8 September | 72.6000 | .. |
| 9 September | 71.4500 | .. |
| 10 September | 72.9200 | .. |
| 13 September | 73.5100 | .. |
| 14 September | 73.6000 | .. |
| 15 September | 75.4600 | .. |
| 16 September | 75.6700 | .. |
| 17 September | 75.3400 | .. |
| 20 September | 73.9200 | .. |
| 21 September | 74.3600 | .. |
| 22 September | 76.1900 | .. |
| 23 September | 77.2500 | .. |
| 24 September | 78.0900 | .. |
| 27 September | 79.5300 | .. |
| 28 September | 79.0900 | .. |
| 29 September | 78.6400 | .. |
| 30 September | 78.5200 | .. |