| Day | Rate | Set date |
|---|---|---|
| 1 May | 23.8200 | .. |
| 2 May | 23.5200 | .. |
| 6 May | 23.5700 | .. |
| 7 May | 24.1100 | .. |
| 8 May | 24.6500 | .. |
| 9 May | 25.1000 | .. |
| 12 May | 24.8900 | .. |
| 13 May | 25.9000 | .. |
| 14 May | 26.7500 | .. |
| 15 May | 26.7300 | .. |
| 16 May | 26.1000 | .. |
| 19 May | 25.6100 | .. |
| 20 May | 25.6500 | .. |
| 21 May | 26.2100 | .. |
| 22 May | 25.9700 | .. |
| 23 May | 26.2400 | .. |
| 27 May | 26.3400 | .. |
| 28 May | 25.5900 | .. |
| 29 May | 26.0300 | .. |
| 30 May | 26.3200 | .. |