| Day | Rate | Set date |
|---|---|---|
| 1 May | 51.5200 | .. |
| 2 May | 50.4600 | .. |
| 3 May | 50.7900 | .. |
| 4 May | 48.3800 | .. |
| 5 May | 49.1000 | .. |
| 8 May | 49.3400 | .. |
| 9 May | 48.7300 | .. |
| 10 May | 50.2200 | .. |
| 11 May | 50.7700 | .. |
| 12 May | 50.8400 | .. |
| 15 May | 51.8200 | .. |
| 16 May | 51.6500 | .. |
| 17 May | 52.2100 | .. |
| 18 May | 52.5100 | .. |
| 19 May | 53.6100 | .. |
| 22 May | 53.8700 | .. |
| 23 May | 54.1500 | .. |
| 24 May | 53.9600 | .. |
| 25 May | 51.4600 | .. |
| 26 May | 52.1500 | .. |
| 29 May | 52.2900 | .. |
| 30 May | 51.8400 | .. |
| 31 May | 50.3100 | .. |