| Day | Rate | Set date |
|---|---|---|
| 2 July | 73.9400 | .. |
| 3 July | 74.1400 | .. |
| 4 July | 74.1300 | .. |
| 5 July | 72.9400 | .. |
| 6 July | 73.8000 | .. |
| 9 July | 73.8500 | .. |
| 10 July | 74.1100 | .. |
| 11 July | 70.3800 | .. |
| 12 July | 70.3300 | .. |
| 13 July | 71.0100 | .. |
| 16 July | 68.0600 | .. |
| 17 July | 68.0800 | .. |
| 18 July | 68.7600 | .. |
| 19 July | 69.4600 | .. |
| 20 July | 70.4600 | .. |
| 23 July | 67.8900 | .. |
| 24 July | 68.5200 | .. |
| 25 July | 69.3000 | .. |
| 26 July | 69.6100 | .. |
| 27 July | 68.6900 | .. |
| 30 July | 70.1300 | .. |
| 31 July | 68.7600 | .. |