| Day | Rate | Set date |
|---|---|---|
| 1 July | 20.4800 | .. |
| 2 July | 20.6100 | .. |
| 6 July | 20.9300 | .. |
| 7 July | 20.7400 | .. |
| 8 July | 20.8800 | .. |
| 9 July | 21.2300 | .. |
| 10 July | 21.3300 | .. |
| 13 July | 21.4000 | .. |
| 14 July | 21.5800 | .. |
| 15 July | 22.1500 | .. |
| 16 July | 22.3400 | .. |
| 17 July | 22.3900 | .. |
| 20 July | 22.2000 | .. |
| 21 July | 21.7000 | .. |
| 22 July | 21.5500 | .. |
| 23 July | 21.2300 | .. |
| 24 July | 20.5700 | .. |
| 27 July | 20.4900 | .. |
| 28 July | 21.3200 | .. |
| 29 July | 21.4400 | .. |
| 30 July | 21.3600 | .. |
| 31 July | 21.3700 | .. |