Conversion operations
| Date | Buy | Sell |
| 17.05.2012 | 15.0400 | 15.2000 |
| 16.05.2012 | 15.0000 | 15.2000 |
| 15.05.2012 | 15.1200 | 15.2800 |
| 14.05.2012 | 15.1800 | 15.3200 |
| 11.05.2012 | 15.2000 | 15.4000 |
| 10.05.2012 | 15.3200 | 15.4400 |
| 08.05.2012 | 15.3500 | 15.5800 |
| 07.05.2012 | 15.2000 | 15.4200 |
| 05.05.2012 | 15.3000 | 15.4800 |
| 04.05.2012 | 15.3600 | 15.5400 |
| 03.05.2012 | 15.3400 | 15.5200 |
| 02.05.2012 | 15.3000 | 15.5200 |
| 27.04.2012 | 15.3500 | 15.5000 |
| 26.04.2012 | 15.4000 | 15.5400 |
| 25.04.2012 | 15.4000 | 15.5800 |
| 24.04.2012 | 15.3500 | 15.5400 |
| 20.04.2012 | 15.3000 | 15.4800 |
| 19.04.2012 | 15.3500 | 15.5200 |
| 18.04.2012 | 15.3000 | 15.5000 |