| Day | Rate | Set date |
|---|---|---|
| 2 June | 19.5200 | .. |
| 3 June | 18.9000 | .. |
| 4 June | 18.7200 | .. |
| 5 June | 18.3200 | .. |
| 6 June | 17.7000 | .. |
| 9 June | 17.5600 | .. |
| 10 June | 17.5000 | .. |
| 11 June | 17.3500 | .. |
| 12 June | 17.4400 | .. |
| 13 June | 17.6900 | .. |
| 16 June | 17.8600 | .. |
| 17 June | 18.0800 | .. |
| 18 June | 17.7700 | .. |
| 19 June | 17.7800 | .. |
| 20 June | 17.6700 | .. |
| 23 June | 17.9800 | .. |
| 24 June | 17.8700 | .. |
| 25 June | 18.2200 | .. |
| 26 June | 17.8500 | .. |
| 27 June | 18.1800 | .. |
| 30 June | 18.5100 | .. |