| Day | Rate | Set date |
|---|---|---|
| 1 February | 21.3400 | .. |
| 4 February | 21.1400 | .. |
| 5 February | 20.6600 | .. |
| 6 February | 21.4900 | .. |
| 7 February | 21.2200 | .. |
| 8 February | 21.9200 | .. |
| 11 February | 22.4700 | .. |
| 12 February | 22.9300 | .. |
| 13 February | 22.5600 | .. |
| 14 February | 22.3200 | .. |
| 15 February | 20.8800 | .. |
| 19 February | 20.0700 | .. |
| 20 February | 20.4800 | .. |
| 21 February | 18.5000 | .. |
| 22 February | 17.9100 | .. |
| 25 February | 17.9400 | .. |
| 26 February | 18.3700 | .. |
| 27 February | 18.8600 | .. |
| 28 February | 19.1600 | .. |