| Day | Rate | Set date |
|---|---|---|
| 1 April | 19.7400 | .. |
| 2 April | 20.1900 | .. |
| 3 April | 19.9800 | .. |
| 4 April | 20.2500 | .. |
| 9 April | 20.7000 | .. |
| 10 April | 22.0300 | .. |
| 11 April | 23.0600 | .. |
| 12 April | 21.7500 | .. |
| 15 April | 21.8300 | .. |
| 16 April | 19.5100 | .. |
| 17 April | 19.1200 | .. |
| 18 April | 18.4000 | .. |
| 19 April | 18.5300 | .. |
| 22 April | 19.0300 | .. |
| 23 April | 20.2300 | .. |
| 24 April | 19.8800 | .. |
| 25 April | 19.8400 | .. |
| 26 April | 19.8000 | .. |
| 29 April | 19.8500 | .. |
| 30 April | 19.0200 | .. |