| Day | Rate | Set date |
|---|---|---|
| 1 October | 18.6300 | .. |
| 4 October | 18.4200 | .. |
| 5 October | 18.3900 | .. |
| 6 October | 18.4200 | .. |
| 7 October | 18.4900 | .. |
| 8 October | 18.5500 | .. |
| 11 October | 18.7700 | .. |
| 12 October | 18.7100 | .. |
| 13 October | 18.6400 | .. |
| 14 October | 18.5000 | .. |
| 15 October | 18.2700 | .. |
| 18 October | 18.1300 | .. |
| 19 October | 18.0600 | .. |
| 20 October | 18.2400 | .. |
| 21 October | 18.3500 | .. |
| 22 October | 18.0700 | .. |
| 25 October | 17.5100 | .. |
| 26 October | 17.5400 | .. |
| 27 October | 17.6500 | .. |
| 28 October | 17.3700 | .. |
| 29 October | 16.9200 | .. |