| Day | Rate | Set date |
|---|---|---|
| 1 June | 18.2100 | .. |
| 2 June | 18.2300 | .. |
| 3 June | 18.1200 | .. |
| 6 June | 18.1100 | .. |
| 7 June | 17.7500 | .. |
| 8 June | 18.3400 | .. |
| 9 June | 18.6700 | .. |
| 10 June | 18.4800 | .. |
| 13 June | 18.7900 | .. |
| 14 June | 18.9500 | .. |
| 15 June | 19.8600 | .. |
| 16 June | 19.9100 | .. |
| 17 June | 20.7100 | .. |
| 20 June | 20.7500 | .. |
| 21 June | 20.0400 | .. |
| 22 June | 19.3700 | .. |
| 23 June | 19.4200 | .. |
| 24 June | 19.3200 | .. |
| 27 June | 19.0100 | .. |
| 28 June | 19.2700 | .. |
| 29 June | 18.8300 | .. |
| 30 June | 19.3700 | .. |