| Day | Rate | Set date |
|---|---|---|
| 2 December | 19.7300 | .. |
| 3 December | 19.2200 | .. |
| 4 December | 19.3900 | .. |
| 5 December | 19.1300 | .. |
| 6 December | 18.8800 | .. |
| 9 December | 18.0100 | .. |
| 10 December | 18.1600 | .. |
| 11 December | 18.2300 | .. |
| 12 December | 18.5800 | .. |
| 13 December | 18.8100 | .. |
| 16 December | 18.5800 | .. |
| 17 December | 18.0600 | .. |
| 18 December | 18.0200 | .. |
| 19 December | 17.8900 | .. |
| 20 December | 17.4000 | .. |
| 23 December | 17.6500 | .. |
| 24 December | 17.8300 | .. |
| 27 December | 17.6800 | .. |
| 30 December | 17.7200 | .. |
| 31 December | 17.6100 | .. |