| Day | Rate | Set date |
|---|---|---|
| 1 April | 19.8400 | .. |
| 2 April | 19.8000 | .. |
| 3 April | 20.2900 | .. |
| 6 April | 20.4500 | .. |
| 7 April | 20.2300 | .. |
| 8 April | 20.6200 | .. |
| 9 April | 20.3100 | .. |
| 10 April | 20.4400 | .. |
| 13 April | 20.2200 | .. |
| 14 April | 19.8600 | .. |
| 15 April | 19.8700 | .. |
| 16 April | 20.2100 | .. |
| 20 April | 20.2400 | .. |
| 21 April | 20.2500 | .. |
| 22 April | 20.1100 | .. |
| 23 April | 20.1100 | .. |
| 24 April | 20.2200 | .. |
| 27 April | 20.2900 | .. |
| 28 April | 20.4100 | .. |
| 29 April | 20.7700 | .. |
| 30 April | 20.8500 | .. |