| Day | Rate | Set date |
|---|---|---|
| 3 May | 88.9400 | .. |
| 4 May | 85.6700 | .. |
| 5 May | 82.6100 | .. |
| 6 May | 79.8300 | .. |
| 7 May | 78.2700 | .. |
| 10 May | 80.1200 | .. |
| 11 May | 80.4900 | .. |
| 12 May | 81.2000 | .. |
| 13 May | 80.1100 | .. |
| 14 May | 77.1800 | .. |
| 17 May | 75.1000 | .. |
| 18 May | 74.4300 | .. |
| 19 May | 73.6900 | .. |
| 20 May | 71.8400 | .. |
| 21 May | 71.6800 | .. |
| 24 May | 71.1700 | .. |
| 25 May | 69.5500 | .. |
| 26 May | 71.7400 | .. |
| 27 May | 74.6600 | .. |
| 28 May | 74.0200 | .. |
| 31 May | 74.6500 | .. |