| Day | Rate | Set date |
|---|---|---|
| 1 February | 22.7000 | .. |
| 2 February | 23.0200 | .. |
| 5 February | 22.3900 | .. |
| 6 February | 22.5100 | .. |
| 7 February | 22.3200 | .. |
| 8 February | 22.0900 | .. |
| 9 February | 21.7400 | .. |
| 12 February | 22.0300 | .. |
| 13 February | 21.9000 | .. |
| 14 February | 22.0700 | .. |
| 15 February | 22.8400 | .. |
| 16 February | 22.4200 | .. |
| 20 February | 22.1900 | .. |
| 21 February | 21.7400 | .. |
| 22 February | 21.7500 | .. |
| 23 February | 21.4200 | .. |
| 26 February | 21.7900 | .. |
| 27 February | 21.5800 | .. |
| 28 February | 21.5400 | .. |