| Day | Rate | Set date |
|---|---|---|
| 2 July | 25.9500 | .. |
| 3 July | 26.2400 | .. |
| 5 July | 27.0200 | .. |
| 6 July | 28.2100 | .. |
| 9 July | 27.5900 | .. |
| 10 July | 27.4900 | .. |
| 11 July | 27.1100 | .. |
| 12 July | 26.8000 | .. |
| 13 July | 26.5900 | .. |
| 16 July | 26.0600 | .. |
| 17 July | 25.5700 | .. |
| 18 July | 24.8900 | .. |
| 19 July | 24.7000 | .. |
| 20 July | 25.5900 | .. |
| 23 July | 26.1200 | .. |
| 24 July | 26.3100 | .. |
| 25 July | 26.8400 | .. |
| 26 July | 26.7300 | .. |
| 27 July | 27.0200 | .. |
| 30 July | 26.6300 | .. |
| 31 July | 26.3500 | .. |