7.8
en
2014
7.4
1999
5.7
2025
7.7
ja
2018
8.7
2015
5.5
2016
8.5
2019
7.0
8.0
1989
N/A
2023
2010
10.0
ko
6.2
9.1
zh
9.3
8.3
2011