| Day | Rate | Set date |
|---|---|---|
| 1 June | 18.7200 | .. |
| 2 June | 18.5400 | .. |
| 3 June | 18.3100 | .. |
| 4 June | 18.3100 | .. |
| 7 June | 18.1900 | .. |
| 8 June | 18.2700 | .. |
| 9 June | 18.2600 | .. |
| 10 June | 17.9600 | .. |
| 11 June | 17.6600 | .. |
| 14 June | 17.5600 | .. |
| 15 June | 17.3300 | .. |
| 16 June | 17.6600 | .. |
| 17 June | 17.5500 | .. |
| 18 June | 17.5600 | .. |
| 21 June | 17.5000 | .. |
| 22 June | 17.4500 | .. |
| 23 June | 17.4800 | .. |
| 24 June | 17.4800 | .. |
| 25 June | 17.4500 | .. |
| 28 June | 17.5200 | .. |
| 29 June | 17.6600 | .. |
| 30 June | 17.5100 | .. |