| Day | Rate | Set date |
|---|---|---|
| 1 June | 18.9000 | .. |
| 2 June | 19.1400 | .. |
| 5 June | 19.2500 | .. |
| 6 June | 19.0600 | .. |
| 7 June | 19.1300 | .. |
| 8 June | 18.9100 | .. |
| 9 June | 18.8000 | .. |
| 12 June | 18.8600 | .. |
| 13 June | 18.9100 | .. |
| 14 June | 19.0500 | .. |
| 15 June | 18.9400 | .. |
| 16 June | 18.8400 | .. |
| 19 June | 18.2200 | .. |
| 20 June | 18.0100 | .. |
| 21 June | 17.4600 | .. |
| 22 June | 17.5000 | .. |
| 23 June | 17.4900 | .. |
| 26 June | 17.6400 | .. |
| 27 June | 17.7700 | .. |
| 28 June | 17.9700 | .. |
| 29 June | 17.5600 | .. |
| 30 June | 17.4000 | .. |