7.2
2018
2019
6.3
8.5
7.5
5.5
2020
7.3
6
4.9
2015
6.7
5.7
5.8
7
4.8
5
4.7
5.4
9.2
6.2
6.4
3.1
6.5
5.9
6.8
5.2
2004
9
5.6