| Day | Rate | Set date |
|---|---|---|
| 3 February | 18.1600 | .. |
| 4 February | 18.3000 | .. |
| 5 February | 18.3000 | .. |
| 6 February | 18.4100 | .. |
| 7 February | 18.8600 | .. |
| 10 February | 18.7900 | .. |
| 11 February | 18.3800 | .. |
| 12 February | 18.2600 | .. |
| 13 February | 18.5000 | .. |
| 17 February | 17.5500 | .. |
| 18 February | 17.6000 | .. |
| 19 February | 17.7400 | .. |
| 20 February | 17.8400 | .. |
| 21 February | 17.7100 | .. |
| 24 February | 17.4300 | .. |
| 25 February | 17.4700 | .. |
| 26 February | 17.3500 | .. |
| 27 February | 17.6400 | .. |
| 28 February | 17.5500 | .. |