7.6
en
2002
7.8
2010
6.1
de
2024
7.0
2025
6.8
fr
es
2023
7.2
5.6
6.5
2018
5.8
2022
7.7
7.1
2016
8.2
1977
ko
2020
6.7
2017
6.9
6.4
5.9