| Day | Rate | Set date |
|---|---|---|
| 1 May | 3.5460 | .. |
| 4 May | 3.7250 | .. |
| 5 May | 3.6150 | .. |
| 6 May | 3.8870 | .. |
| 7 May | 4.0810 | .. |
| 8 May | 4.3110 | .. |
| 11 May | 4.3020 | .. |
| 12 May | 4.4490 | .. |
| 13 May | 4.3330 | .. |
| 14 May | 4.2920 | .. |
| 15 May | 4.0980 | .. |
| 18 May | 4.1390 | .. |
| 19 May | 3.9140 | .. |
| 20 May | 3.9700 | .. |
| 21 May | 3.6030 | .. |
| 22 May | 3.5150 | .. |
| 26 May | 3.5370 | .. |
| 27 May | 3.5380 | .. |
| 28 May | 3.9570 | .. |
| 29 May | 3.8350 | .. |