| Day | Rate | Set date |
|---|---|---|
| 1 May | 7.4610 | .. |
| 2 May | 7.4750 | .. |
| 3 May | 7.9540 | .. |
| 4 May | 8.4150 | .. |
| 5 May | 8.7830 | .. |
| 6 May | 8.0430 | .. |
| 8 May | 8.1250 | .. |
| 9 May | 7.0260 | .. |
| 10 May | 7.3850 | .. |
| 11 May | 7.6400 | .. |
| 12 May | 7.7390 | .. |
| 13 May | 7.6630 | .. |
| 15 May | 7.8420 | .. |
| 16 May | 7.9560 | .. |
| 17 May | 8.3040 | .. |
| 18 May | 8.3680 | .. |
| 19 May | 8.3080 | .. |
| 20 May | 8.0830 | .. |
| 22 May | 8.1620 | .. |
| 23 May | 8.7440 | .. |
| 24 May | 8.7960 | .. |
| 25 May | 8.9710 | .. |
| 26 May | 8.9080 | .. |
| 27 May | 8.7270 | .. |
| 29 May | 8.8150 | .. |
| 30 May | 8.6860 | .. |
| 31 May | 8.1450 | .. |