6.9
ja
2004
8.0
2009
3.2
de
1997
N/A
2002
7.3
fr
1990
7.5
2025
7.9
1969
7.1
en
2021
1.0
hi
2020
2013
3.7
2007
6.8
1949
5.2
2018
5.0
no
7.6
es
2016
8.4
7.8
it
8.1
2014
8.9
zh
2015