| Day | Rate | Set date |
|---|---|---|
| 1 June | 20.2400 | .. |
| 2 June | 20.0300 | .. |
| 3 June | 19.7400 | .. |
| 4 June | 19.7700 | .. |
| 7 June | 19.5400 | .. |
| 8 June | 19.6500 | .. |
| 9 June | 19.6400 | .. |
| 10 June | 19.2800 | .. |
| 11 June | 18.9800 | .. |
| 14 June | 18.8900 | .. |
| 15 June | 18.5800 | .. |
| 16 June | 18.8400 | .. |
| 17 June | 18.7000 | .. |
| 18 June | 18.6700 | .. |
| 21 June | 18.6200 | .. |
| 22 June | 18.4200 | .. |
| 23 June | 18.8600 | .. |
| 24 June | 18.8900 | .. |
| 25 June | 18.8400 | .. |
| 28 June | 18.9000 | .. |
| 29 June | 19.0100 | .. |
| 30 June | 18.8500 | .. |