| Day | Rate | Set date |
|---|---|---|
| 1 May | 1.8205 | 29.04.2011 |
| 2 May | 1.8150 | 02.05.2011 |
| 3 May | 1.8156 | 03.05.2011 |
| 4 May | 1.8265 | 04.05.2011 |
| 5 May | 1.8273 | 05.05.2011 |
| 6 May | 1.7929 | 06.05.2011 |
| 7 May | 1.7929 | 06.05.2011 |
| 8 May | 1.7929 | 06.05.2011 |
| 9 May | 1.7752 | 09.05.2011 |
| 10 May | 1.7698 | 10.05.2011 |
| 11 May | 1.7666 | 11.05.2011 |
| 12 May | 1.7604 | 12.05.2011 |
| 13 May | 1.7704 | 13.05.2011 |
| 14 May | 1.7704 | 13.05.2011 |
| 15 May | 1.7704 | 13.05.2011 |
| 16 May | 1.7677 | 16.05.2011 |
| 17 May | 1.7695 | 17.05.2011 |
| 18 May | 1.7697 | 18.05.2011 |
| 19 May | 1.7664 | 19.05.2011 |
| 20 May | 1.7614 | 20.05.2011 |
| 21 May | 1.7614 | 20.05.2011 |
| 22 May | 1.7614 | 20.05.2011 |
| 23 May | 1.7501 | 23.05.2011 |
| 24 May | 1.7559 | 24.05.2011 |
| 25 May | 1.7557 | 25.05.2011 |
| 26 May | 1.7615 | 26.05.2011 |
| 27 May | 1.7632 | 27.05.2011 |
| 28 May | 1.7632 | 27.05.2011 |
| 29 May | 1.7632 | 27.05.2011 |
| 30 May | 1.7613 | 30.05.2011 |
| 31 May | 1.7754 | 31.05.2011 |