| Day | Rate | Set date |
|---|---|---|
| 4 January | 17.7900 | .. |
| 5 January | 17.9700 | .. |
| 6 January | 17.7500 | .. |
| 7 January | 17.5800 | .. |
| 8 January | 17.4800 | .. |
| 11 January | 17.4200 | .. |
| 12 January | 17.0100 | .. |
| 13 January | 17.0600 | .. |
| 14 January | 17.2300 | .. |
| 15 January | 17.5000 | .. |
| 18 January | 17.4600 | .. |
| 19 January | 17.1900 | .. |
| 20 January | 16.9700 | .. |
| 21 January | 17.4200 | .. |
| 22 January | 17.3100 | .. |
| 25 January | 18.0700 | .. |
| 26 January | 18.0300 | .. |
| 27 January | 18.0300 | .. |
| 28 January | 18.6200 | .. |
| 29 January | 18.4700 | .. |