2016
6.6
2018
4.4
2019
4.7
5.7
8.1
4.6
2015
7.2
6.9
2017
6.7
5.1
5.6
4.1
6.8
6.5
7.6
6.4
6.2
2011
8.8
2004
8.3
5.2
4.9
2010
2012
5.5