| Day | Rate | Set date |
|---|---|---|
| 1 July | 20.7600 | .. |
| 2 July | 20.8200 | .. |
| 3 July | 20.6700 | .. |
| 5 July | 20.8900 | .. |
| 8 July | 21.2400 | .. |
| 9 July | 21.2900 | .. |
| 10 July | 21.4300 | .. |
| 11 July | 21.2900 | .. |
| 12 July | 21.7200 | .. |
| 15 July | 21.4700 | .. |
| 16 July | 21.6500 | .. |
| 17 July | 22.1400 | .. |
| 18 July | 21.9400 | .. |
| 19 July | 22.1600 | .. |
| 22 July | 21.7200 | .. |
| 23 July | 21.3200 | .. |
| 24 July | 21.5200 | .. |
| 25 July | 21.4600 | .. |
| 26 July | 21.4800 | .. |
| 29 July | 21.3500 | .. |
| 30 July | 21.4200 | .. |
| 31 July | 21.6800 | .. |