| Day | Rate | Set date |
|---|---|---|
| 1 May | 90.5900 | 01.05.2015 |
| 4 May | 90.5600 | 04.05.2015 |
| 5 May | 90.6100 | 05.05.2015 |
| 6 May | 89.5800 | 06.05.2015 |
| 7 May | 89.1900 | 07.05.2015 |
| 8 May | 89.7300 | 08.05.2015 |
| 11 May | 88.0900 | 11.05.2015 |
| 12 May | 88.2500 | 12.05.2015 |
| 13 May | 89.1700 | 13.05.2015 |
| 14 May | 89.3400 | 14.05.2015 |
| 15 May | 89.1600 | 15.05.2015 |
| 18 May | 88.6600 | 18.05.2015 |
| 19 May | 88.6500 | 19.05.2015 |
| 20 May | 88.6700 | 20.05.2015 |
| 21 May | 89.0000 | 21.05.2015 |
| 22 May | 88.8900 | 22.05.2015 |
| 25 May | 88.8600 | 25.05.2015 |
| 26 May | 89.0400 | 26.05.2015 |
| 27 May | 89.8500 | 27.05.2015 |
| 28 May | 88.9500 | 28.05.2015 |
| 29 May | 88.2300 | 29.05.2015 |