| Day | Rate | Set date |
|---|---|---|
| 2 January | 18.6200 | .. |
| 3 January | 18.6300 | .. |
| 4 January | 18.6800 | .. |
| 5 January | 19.0500 | .. |
| 8 January | 19.2200 | .. |
| 9 January | 18.6600 | .. |
| 10 January | 18.5000 | .. |
| 11 January | 17.8900 | .. |
| 12 January | 17.4100 | .. |
| 15 January | 17.5600 | .. |
| 16 January | 17.7600 | .. |
| 17 January | 17.0900 | .. |
| 18 January | 17.3200 | .. |
| 19 January | 17.1200 | .. |
| 22 January | 16.9900 | .. |
| 23 January | 16.8700 | .. |
| 24 January | 16.9900 | .. |
| 25 January | 16.4800 | .. |
| 26 January | 16.4900 | .. |
| 29 January | 16.2200 | .. |
| 30 January | 16.3700 | .. |
| 31 January | 16.5200 | .. |