| Day | Rate | Set date |
|---|---|---|
| 1 May | 53.2000 | .. |
| 4 May | 54.4700 | .. |
| 5 May | 53.8400 | .. |
| 6 May | 56.3400 | .. |
| 7 May | 56.7100 | .. |
| 8 May | 58.6300 | .. |
| 11 May | 58.5000 | .. |
| 12 May | 58.8500 | .. |
| 13 May | 58.0200 | .. |
| 14 May | 58.6200 | .. |
| 15 May | 56.3400 | .. |
| 18 May | 59.0300 | .. |
| 19 May | 59.6500 | .. |
| 20 May | 62.0400 | .. |
| 21 May | 61.0500 | .. |
| 22 May | 61.6700 | .. |
| 26 May | 62.4500 | .. |
| 27 May | 63.4500 | .. |
| 28 May | 65.0800 | .. |
| 29 May | 66.3100 | .. |