| Day | Rate | Set date |
|---|---|---|
| 3 December | 20.0900 | .. |
| 4 December | 19.6500 | .. |
| 5 December | 19.4900 | .. |
| 6 December | 18.5400 | .. |
| 7 December | 19.0400 | .. |
| 10 December | 18.3700 | .. |
| 11 December | 18.0800 | .. |
| 12 December | 18.3600 | .. |
| 13 December | 18.1200 | .. |
| 14 December | 19.2300 | .. |
| 17 December | 19.2200 | .. |
| 18 December | 19.3600 | .. |
| 19 December | 19.8000 | .. |
| 20 December | 19.2800 | .. |
| 21 December | 19.6200 | .. |
| 26 December | 21.2700 | .. |
| 27 December | 20.9000 | .. |
| 28 December | 20.4100 | .. |
| 31 December | 19.8400 | .. |