| Day | Rate | Set date |
|---|---|---|
| 1 May | 181.9500 | 01.05.2015 |
| 4 May | 181.6500 | 04.05.2015 |
| 5 May | 182.0100 | 05.05.2015 |
| 6 May | 182.1200 | 06.05.2015 |
| 7 May | 182.5400 | 07.05.2015 |
| 8 May | 185.1800 | 08.05.2015 |
| 11 May | 187.1600 | 11.05.2015 |
| 12 May | 187.8400 | 12.05.2015 |
| 13 May | 187.6200 | 13.05.2015 |
| 14 May | 188.0000 | 14.05.2015 |
| 15 May | 187.5600 | 15.05.2015 |
| 18 May | 187.8100 | 18.05.2015 |
| 19 May | 187.2000 | 19.05.2015 |
| 20 May | 188.5600 | 20.05.2015 |
| 21 May | 189.5700 | 21.05.2015 |
| 22 May | 188.2700 | 22.05.2015 |
| 25 May | 188.0600 | 25.05.2015 |
| 26 May | 189.3900 | 26.05.2015 |
| 27 May | 189.8900 | 27.05.2015 |
| 28 May | 189.8600 | 28.05.2015 |
| 29 May | 189.8200 | 29.05.2015 |