| Date | Currency |
|---|---|
| 15/01/2018 | 7.68 |
| 09/01/2018 | 7.63 |
| 05/01/2018 | 7.64 |
| 26/12/2017 | 7.54 |
| 19/12/2017 | 7.45 |
| 12/12/2017 | 7.41 |
| 05/12/2017 | 7.43 |
| 28/11/2017 | 7.44 |
| 21/11/2017 | 7.35 |
| 14/11/2017 | 7.20 |
| 07/11/2017 | 7.23 |
| 31/10/2017 | 7.19 |
| 24/10/2017 | 7.14 |
| 17/10/2017 | 7.16 |
| 10/10/2017 | 7.04 |
| $ 1 | 12697.00 | 0.000% |
| € 1 | 13547.70 | 0.000% |
| ₽ 1 | 135.05 | 0.000% |