the highest = the best
| Дата | Значение | Изменение , % |
|---|---|---|
| 2021 | 81,10 | -0,30% |
| 2020 | 81,35 | 0,36% |
| 2019 | 81,06 | -0,05% |
| 2018 | 81,09 | 0,17% |
| 2017 | 80,96 | 0,18% |
| 2016 | 80,81 | 0,51% |
| 2015 | 80,41 | 2,68% |
| 2014 | 78,31 | -1,44% |
| 2013 | 79,45 | -0,75% |
| 2012 | 80,05 | 0,06% |
| 2011 | 80,01 | 0,20% |
| 2010 | 79,85 |