| Day | Rate | Set date |
|---|---|---|
| 1 May | 99.9500 | .. |
| 2 May | 102.8500 | .. |
| 3 May | 104.1900 | .. |
| 6 May | 105.4600 | .. |
| 7 May | 104.4000 | .. |
| 8 May | 104.3400 | .. |
| 9 May | 104.4700 | .. |
| 10 May | 103.9100 | .. |
| 13 May | 102.8200 | .. |
| 14 May | 102.6000 | .. |
| 15 May | 103.6800 | .. |
| 16 May | 103.8000 | .. |
| 17 May | 104.6400 | .. |
| 20 May | 104.8000 | .. |
| 21 May | 103.9100 | .. |
| 22 May | 102.6000 | .. |
| 23 May | 102.4400 | .. |
| 24 May | 102.6400 | .. |
| 27 May | 102.6200 | .. |
| 28 May | 104.2300 | .. |
| 29 May | 102.4300 | .. |
| 30 May | 102.1900 | .. |
| 31 May | 100.3900 | .. |