| Day | Rate | Set date |
|---|---|---|
| 1 May | 119.6600 | .. |
| 2 May | 118.2000 | .. |
| 3 May | 116.0800 | .. |
| 4 May | 113.1800 | .. |
| 7 May | 113.1600 | .. |
| 8 May | 112.7300 | .. |
| 9 May | 113.2000 | .. |
| 10 May | 112.7300 | .. |
| 11 May | 112.2600 | .. |
| 14 May | 111.5700 | .. |
| 15 May | 112.2400 | .. |
| 16 May | 111.7100 | .. |
| 17 May | 107.4900 | .. |
| 18 May | 107.1400 | .. |
| 21 May | 108.8100 | .. |
| 22 May | 108.4100 | .. |
| 23 May | 105.5600 | .. |
| 24 May | 106.5500 | .. |
| 25 May | 106.8300 | .. |
| 28 May | 107.1100 | .. |
| 29 May | 106.6800 | .. |
| 30 May | 103.4700 | .. |
| 31 May | 101.8700 | .. |