| Day | Rate | Set date |
|---|---|---|
| 2 May | 50.9200 | .. |
| 3 May | 49.5000 | .. |
| 4 May | 50.1300 | .. |
| 5 May | 50.8300 | .. |
| 6 May | 50.9600 | .. |
| 9 May | 52.0300 | .. |
| 10 May | 52.0700 | .. |
| 11 May | 50.4500 | .. |
| 12 May | 48.5400 | .. |
| 13 May | 48.6700 | .. |
| 16 May | 48.6100 | .. |
| 17 May | 48.9700 | .. |
| 18 May | 47.2500 | .. |
| 19 May | 46.9200 | .. |
| 20 May | 46.8000 | .. |
| 23 May | 49.1600 | .. |
| 24 May | 49.6700 | .. |
| 25 May | 50.9800 | .. |
| 26 May | 51.0100 | .. |
| 27 May | 51.8500 | .. |
| 31 May | 51.9700 | .. |