| Day | Rate | Set date |
|---|---|---|
| 1 May | 2.2290 | .. |
| 2 May | 2.1900 | .. |
| 3 May | 2.1310 | .. |
| 6 May | 2.1480 | .. |
| 7 May | 2.1870 | .. |
| 8 May | 2.1860 | .. |
| 9 May | 2.2100 | .. |
| 10 May | 2.2040 | .. |
| 13 May | 2.2860 | .. |
| 14 May | 2.2730 | .. |
| 15 May | 2.2990 | .. |
| 16 May | 2.3020 | .. |
| 17 May | 2.2840 | .. |
| 20 May | 2.3240 | .. |
| 21 May | 2.2950 | .. |
| 22 May | 2.3290 | .. |
| 23 May | 2.3370 | .. |
| 24 May | 2.3610 | .. |
| 28 May | 2.4180 | .. |
| 29 May | 2.4420 | .. |
| 30 May | 2.3960 | .. |
| 31 May | 2.4060 | .. |