| Date | Currency |
|---|---|
| 20/09/2011 | 57.13 |
| 13/09/2011 | 58.66 |
| 06/09/2011 | 59.86 |
| 29/08/2011 | 60.15 |
| 23/08/2011 | 59.24 |
| 16/08/2011 | 58.80 |
| 09/08/2011 | 61.02 |
| 02/08/2011 | 62.39 |
| 26/07/2011 | 62.23 |
| 19/07/2011 | 61.24 |
| 12/07/2011 | 61.67 |
| 05/07/2011 | 61.64 |
| 28/06/2011 | 60.85 |
| 21/06/2011 | 60.72 |
| 14/06/2011 | 61.49 |
| $ 1 | 12727.96 | +0.134% |
| € 1 | 13781.84 | +0.459% |
| ₽ 1 | 139.46 | +0.288% |