6.3
en
2011
8.3
ja
2020
7.6
2017
8.0
2024
6.6
zh
2015
7.2
2018
7.9
2019
2008
6.4
2022
2021
4.6
ca
2000
7.0
1976
7.3
2010
8.9
2006
2004
5.8
1992
7.7
2002
7.4