| Day | Rate | Set date |
|---|---|---|
| 2 May | 17.1400 | .. |
| 3 May | 17.3700 | .. |
| 4 May | 17.2000 | .. |
| 5 May | 17.3900 | .. |
| 6 May | 17.7400 | .. |
| 9 May | 17.5400 | .. |
| 10 May | 17.4600 | .. |
| 11 May | 17.4900 | .. |
| 12 May | 17.4800 | .. |
| 13 May | 17.4900 | .. |
| 16 May | 17.6600 | .. |
| 17 May | 17.7600 | .. |
| 18 May | 17.4300 | .. |
| 19 May | 17.4500 | .. |
| 20 May | 17.1700 | .. |
| 23 May | 17.1700 | .. |
| 24 May | 17.4000 | .. |
| 25 May | 17.3700 | .. |
| 26 May | 17.5400 | .. |
| 27 May | 17.4300 | .. |
| 31 May | 17.5100 | .. |