| Day | Rate | Set date |
|---|---|---|
| 1 April | 20.5200 | .. |
| 2 April | 20.6500 | .. |
| 5 April | 20.6200 | .. |
| 6 April | 20.3000 | .. |
| 7 April | 20.3700 | .. |
| 8 April | 20.2200 | .. |
| 12 April | 20.4600 | .. |
| 13 April | 20.4600 | .. |
| 14 April | 20.4000 | .. |
| 15 April | 20.2200 | .. |
| 16 April | 20.1400 | .. |
| 19 April | 19.9900 | .. |
| 20 April | 19.8400 | .. |
| 21 April | 20.3700 | .. |
| 22 April | 20.1500 | .. |
| 23 April | 20.3400 | .. |
| 26 April | 20.3000 | .. |
| 27 April | 20.1800 | .. |
| 28 April | 20.1900 | .. |
| 29 April | 20.5800 | .. |
| 30 April | 20.5300 | .. |