| Day | Rate | Set date |
|---|---|---|
| 2 April | 20.4800 | .. |
| 3 April | 20.3000 | .. |
| 4 April | 19.7800 | .. |
| 5 April | 19.4300 | .. |
| 6 April | 19.1500 | .. |
| 9 April | 18.4400 | .. |
| 10 April | 17.6800 | .. |
| 11 April | 18.0600 | .. |
| 12 April | 17.7800 | .. |
| 16 April | 17.8500 | .. |
| 17 April | 17.4400 | .. |
| 18 April | 16.9600 | .. |
| 19 April | 18.0600 | .. |
| 20 April | 17.9500 | .. |
| 23 April | 19.0700 | .. |
| 24 April | 19.0000 | .. |
| 25 April | 18.6600 | .. |
| 26 April | 18.4700 | .. |
| 27 April | 18.5400 | .. |
| 30 April | 18.5400 | .. |