| Day | Rate | Set date |
|---|---|---|
| 1 May | 6.6950 | .. |
| 2 May | 6.7460 | .. |
| 3 May | 6.6060 | .. |
| 4 May | 6.9060 | .. |
| 5 May | 6.7750 | .. |
| 8 May | 6.6960 | .. |
| 9 May | 6.5810 | .. |
| 10 May | 6.9000 | .. |
| 11 May | 6.6490 | .. |
| 12 May | 6.2800 | .. |
| 15 May | 6.1230 | .. |
| 16 May | 6.2520 | .. |
| 17 May | 6.1290 | .. |
| 18 May | 5.9970 | .. |
| 19 May | 5.9620 | .. |
| 22 May | 6.2760 | .. |
| 23 May | 6.2580 | .. |
| 24 May | 5.9640 | .. |
| 25 May | 5.9750 | .. |
| 26 May | 5.9250 | .. |
| 30 May | 6.1230 | .. |
| 31 May | 6.3840 | .. |