| Day | Rate | Set date |
|---|---|---|
| 3 May | 86.1900 | .. |
| 4 May | 82.7400 | .. |
| 5 May | 79.9700 | .. |
| 6 May | 77.1100 | .. |
| 7 May | 75.1100 | .. |
| 10 May | 76.8000 | .. |
| 11 May | 76.3700 | .. |
| 12 May | 75.6500 | .. |
| 13 May | 74.4000 | .. |
| 14 May | 71.6100 | .. |
| 17 May | 70.0800 | .. |
| 18 May | 69.4100 | .. |
| 19 May | 69.8700 | .. |
| 20 May | 68.0100 | .. |
| 21 May | 70.0400 | .. |
| 24 May | 70.2100 | .. |
| 25 May | 68.7500 | .. |
| 26 May | 71.5100 | .. |
| 27 May | 74.5500 | .. |
| 28 May | 73.9700 | .. |