2018
4.8
6.5
2019
5.5
2017
6.3
5.2
6.6
6.2
5.4
4.9
4.5
4.3
5.7
2015
3.8
5.3
7
2016
7.1
6.7
5.8
4.6
6
6.9
4.4
6.8
