| Day | Rate | Set date |
|---|---|---|
| 1 February | 19.9800 | .. |
| 4 February | 19.8100 | .. |
| 5 February | 19.5600 | .. |
| 6 February | 19.3100 | .. |
| 7 February | 19.2100 | .. |
| 8 February | 19.7200 | .. |
| 11 February | 21.4400 | .. |
| 12 February | 20.4600 | .. |
| 13 February | 20.7000 | .. |
| 14 February | 20.8200 | .. |
| 15 February | 20.8700 | .. |
| 18 February | 20.3300 | .. |
| 19 February | 20.5200 | .. |
| 20 February | 19.8600 | .. |
| 21 February | 20.3700 | .. |
| 22 February | 20.3700 | .. |
| 25 February | 19.9800 | .. |
| 26 February | 20.8600 | .. |
| 27 February | 20.8500 | .. |
| 28 February | 21.3300 | .. |