| Day | Rate | Set date |
|---|---|---|
| 1 December | 18.1600 | .. |
| 2 December | 18.1900 | .. |
| 3 December | 18.1700 | .. |
| 4 December | 18.0000 | .. |
| 5 December | 18.1300 | .. |
| 8 December | 18.1500 | .. |
| 9 December | 17.9200 | .. |
| 10 December | 17.4200 | .. |
| 11 December | 17.4100 | .. |
| 12 December | 17.3100 | .. |
| 15 December | 17.2600 | .. |
| 16 December | 17.2200 | .. |
| 17 December | 17.4000 | .. |
| 18 December | 17.8000 | .. |
| 19 December | 17.5300 | .. |
| 22 December | 17.2800 | .. |
| 23 December | 17.3300 | .. |
| 24 December | 17.3300 | .. |
| 29 December | 16.6000 | .. |
| 30 December | 16.6700 | .. |
| 31 December | 16.5200 | .. |