| Day | Rate | Set date |
|---|---|---|
| 1 May | 48.8400 | .. |
| 2 May | 47.6600 | .. |
| 3 May | 47.8200 | .. |
| 4 May | 45.5200 | .. |
| 5 May | 46.2200 | .. |
| 8 May | 46.4300 | .. |
| 9 May | 45.8800 | .. |
| 10 May | 47.3300 | .. |
| 11 May | 47.8300 | .. |
| 12 May | 47.8400 | .. |
| 15 May | 48.8500 | .. |
| 16 May | 48.6600 | .. |
| 17 May | 49.0700 | .. |
| 18 May | 49.3500 | .. |
| 19 May | 50.3300 | .. |
| 22 May | 50.7300 | .. |
| 23 May | 51.4700 | .. |
| 24 May | 51.3600 | .. |
| 25 May | 48.9000 | .. |
| 26 May | 49.8000 | .. |
| 28 May | 49.9400 | .. |
| 29 May | 49.9700 | .. |
| 30 May | 49.6600 | .. |
| 31 May | 48.3200 | .. |