| Day | Rate | Set date |
|---|---|---|
| 1 July | 19.3900 | .. |
| 2 July | 19.6900 | .. |
| 6 July | 19.7800 | .. |
| 7 July | 19.7700 | .. |
| 8 July | 19.7100 | .. |
| 9 July | 19.9400 | .. |
| 12 July | 19.9100 | .. |
| 13 July | 20.1500 | .. |
| 14 July | 19.9200 | .. |
| 15 July | 20.1600 | .. |
| 16 July | 20.6200 | .. |
| 19 July | 20.4400 | .. |
| 20 July | 19.3700 | .. |
| 21 July | 19.6500 | .. |
| 22 July | 19.9400 | .. |
| 23 July | 20.6300 | .. |
| 26 July | 20.5200 | .. |
| 27 July | 20.3800 | .. |
| 28 July | 20.5400 | .. |
| 29 July | 20.9700 | .. |
| 30 July | 20.5300 | .. |