| Day | Rate | Set date |
|---|---|---|
| 1 September | 88.9300 | .. |
| 2 September | 86.4500 | .. |
| 6 September | 86.0200 | .. |
| 7 September | 89.3400 | .. |
| 8 September | 89.0500 | .. |
| 9 September | 87.2400 | .. |
| 12 September | 88.1900 | .. |
| 13 September | 90.2100 | .. |
| 14 September | 88.9100 | .. |
| 15 September | 89.4000 | .. |
| 16 September | 87.9600 | .. |
| 19 September | 85.7000 | .. |
| 20 September | 86.8900 | .. |
| 21 September | 85.9200 | .. |
| 22 September | 80.5100 | .. |
| 23 September | 79.8500 | .. |
| 26 September | 80.2400 | .. |
| 27 September | 84.4500 | .. |
| 28 September | 81.2100 | .. |
| 29 September | 82.1400 | .. |
| 30 September | 79.2000 | .. |