| Day | Rate | Set date |
|---|---|---|
| 1 May | 59.1500 | .. |
| 4 May | 58.9300 | .. |
| 5 May | 60.4000 | .. |
| 6 May | 60.9300 | .. |
| 7 May | 58.9400 | .. |
| 8 May | 59.3900 | .. |
| 11 May | 59.2500 | .. |
| 12 May | 60.7500 | .. |
| 13 May | 60.5000 | .. |
| 14 May | 59.8800 | .. |
| 15 May | 59.6900 | .. |
| 18 May | 59.4300 | .. |
| 19 May | 57.2600 | .. |
| 20 May | 58.9800 | .. |
| 21 May | 60.7200 | .. |
| 22 May | 59.7200 | .. |
| 24 May | 59.9200 | .. |
| 25 May | 59.8500 | .. |
| 26 May | 58.0300 | .. |
| 27 May | 57.5100 | .. |
| 28 May | 57.6800 | .. |
| 29 May | 60.3000 | .. |