| Day | Rate | Set date |
|---|---|---|
| 1 July | 21.8600 | .. |
| 2 July | 22.1000 | .. |
| 6 July | 21.8900 | .. |
| 7 July | 21.4000 | .. |
| 8 July | 21.4100 | .. |
| 9 July | 21.4000 | .. |
| 10 July | 21.2800 | .. |
| 13 July | 21.3600 | .. |
| 14 July | 21.4600 | .. |
| 15 July | 21.7100 | .. |
| 16 July | 21.7900 | .. |
| 17 July | 21.5800 | .. |
| 20 July | 21.7900 | .. |
| 21 July | 21.7800 | .. |
| 22 July | 21.8400 | .. |
| 23 July | 21.9600 | .. |
| 24 July | 21.9800 | .. |
| 27 July | 22.0400 | .. |
| 28 July | 22.0500 | .. |
| 29 July | 22.0000 | .. |
| 30 July | 21.8300 | .. |
| 31 July | 21.8700 | .. |