| Day | Rate | Set date |
|---|---|---|
| 1 February | 18.5700 | .. |
| 2 February | 18.2500 | .. |
| 3 February | 18.2600 | .. |
| 4 February | 18.5600 | .. |
| 5 February | 18.5600 | .. |
| 8 February | 18.3000 | .. |
| 9 February | 18.2900 | .. |
| 10 February | 18.3100 | .. |
| 11 February | 18.3900 | .. |
| 12 February | 18.2100 | .. |
| 15 February | 17.9600 | .. |
| 16 February | 18.1500 | .. |
| 17 February | 17.7300 | .. |
| 18 February | 17.9800 | .. |
| 19 February | 18.2800 | .. |
| 22 February | 18.6300 | .. |
| 23 February | 18.9500 | .. |
| 24 February | 19.0100 | .. |
| 25 February | 18.9800 | .. |
| 26 February | 18.9200 | .. |