| Day | Rate | Set date |
|---|---|---|
| 1 February | 18.5200 | .. |
| 2 February | 18.5400 | .. |
| 3 February | 18.7800 | .. |
| 6 February | 18.5900 | .. |
| 7 February | 18.4600 | .. |
| 8 February | 18.3000 | .. |
| 9 February | 18.2400 | .. |
| 10 February | 18.4600 | .. |
| 13 February | 18.2700 | .. |
| 14 February | 18.3200 | .. |
| 15 February | 18.4200 | .. |
| 16 February | 18.5900 | .. |
| 17 February | 18.9100 | .. |
| 21 February | 18.8600 | .. |
| 22 February | 18.6300 | .. |
| 23 February | 18.4300 | .. |
| 24 February | 18.6900 | .. |
| 27 February | 18.6600 | .. |
| 28 February | 18.4900 | .. |