| Day | Rate | Set date |
|---|---|---|
| 1 May | 10.5610 | .. |
| 2 May | 10.7770 | .. |
| 5 May | 11.1780 | .. |
| 6 May | 11.1500 | .. |
| 7 May | 11.3270 | .. |
| 8 May | 11.2630 | .. |
| 9 May | 11.5370 | .. |
| 12 May | 11.3010 | .. |
| 13 May | 11.4220 | .. |
| 14 May | 11.5980 | .. |
| 15 May | 11.3990 | .. |
| 16 May | 11.0940 | .. |
| 19 May | 10.9540 | .. |
| 20 May | 11.3650 | .. |
| 21 May | 11.6400 | .. |
| 22 May | 11.6970 | .. |
| 23 May | 11.8570 | .. |
| 27 May | 11.8010 | .. |
| 28 May | 11.9160 | .. |
| 29 May | 11.4740 | .. |
| 30 May | 11.7030 | .. |