| Day | Rate | Set date |
|---|---|---|
| 1 April | 19.2900 | .. |
| 2 April | 19.7000 | .. |
| 3 April | 19.4700 | .. |
| 4 April | 19.9800 | .. |
| 5 April | 19.9600 | .. |
| 8 April | 20.3100 | .. |
| 9 April | 20.2600 | .. |
| 10 April | 21.0500 | .. |
| 11 April | 20.8900 | .. |
| 12 April | 21.4800 | .. |
| 15 April | 21.9100 | .. |
| 16 April | 21.6400 | .. |
| 17 April | 21.7100 | .. |
| 18 April | 21.0800 | .. |
| 19 April | 21.1300 | .. |
| 22 April | 21.6200 | .. |
| 23 April | 20.8800 | .. |
| 24 April | 20.9400 | .. |
| 25 April | 21.1500 | .. |
| 26 April | 21.2800 | .. |
| 29 April | 21.2600 | .. |
| 30 April | 20.9600 | .. |