| Day | Rate | Set date |
|---|---|---|
| 1 April | 19.0000 | .. |
| 2 April | 19.1100 | .. |
| 5 April | 19.0600 | .. |
| 6 April | 18.7800 | .. |
| 7 April | 18.8600 | .. |
| 8 April | 18.7700 | .. |
| 13 April | 18.9100 | .. |
| 14 April | 18.8600 | .. |
| 15 April | 18.8500 | .. |
| 16 April | 18.8100 | .. |
| 19 April | 18.7200 | .. |
| 20 April | 18.8000 | .. |
| 21 April | 18.8800 | .. |
| 22 April | 18.7600 | .. |
| 23 April | 18.9100 | .. |
| 26 April | 18.9000 | .. |
| 27 April | 18.7600 | .. |
| 28 April | 18.7900 | .. |
| 29 April | 19.1500 | .. |
| 30 April | 19.1500 | .. |