the highest = the best
| Дата | Значение | Изменение , % |
|---|---|---|
| 2021 | 51,79 | -0,41% |
| 2020 | 52,00 | -0,30% |
| 2019 | 52,16 | 1,26% |
| 2018 | 51,51 | -0,19% |
| 2017 | 51,60 | 1,65% |
| 2016 | 50,77 | -0,48% |
| 2015 | 51,01 | 0,17% |
| 2014 | 50,93 | -0,10% |
| 2013 | 50,98 | 0,70% |
| 2012 | 50,62 | 2,32% |
| 2011 | 49,47 | -1,71% |
| 2010 | 50,34 |