| Day | Rate | Set date |
|---|---|---|
| 2 January | 19.4900 | .. |
| 3 January | 19.2300 | .. |
| 6 January | 19.2100 | .. |
| 7 January | 18.6900 | .. |
| 8 January | 17.8700 | .. |
| 9 January | 17.8600 | .. |
| 10 January | 18.2300 | .. |
| 13 January | 18.7900 | .. |
| 14 January | 18.4700 | .. |
| 15 January | 18.8500 | .. |
| 16 January | 18.9100 | .. |
| 17 January | 19.1600 | .. |
| 20 January | 18.8900 | .. |
| 21 January | 18.4700 | .. |
| 22 January | 18.9400 | .. |
| 23 January | 18.7200 | .. |
| 24 January | 19.0000 | .. |
| 27 January | 19.3600 | .. |
| 28 January | 19.1700 | .. |
| 29 January | 18.8900 | .. |
| 30 January | 18.9400 | .. |
| 31 January | 18.9000 | .. |