Annual data series are interpolated from 5-year period data. Therefore they may not reflect real events as much as observed data.
| Date | Valeur | Modifier , % |
|---|---|---|
| 2023 | 51,0 | -0,01 % |
| 2022 | 51,0 | -0,01 % |
| 2021 | 51,0 | 0,01 % |
| 2020 | 51,0 | 0,02 % |
| 2019 | 51,0 | 0,03 % |
| 2018 | 51,0 | 0,06 % |
| 2017 | 50,9 | 0,07 % |
| 2016 | 50,9 | 0,07 % |
| 2015 | 50,9 | 0,07 % |
| 2014 | 50,8 | 0,11 % |
| 2013 | 50,8 | 0,15 % |
| 2012 | 50,7 |