2009
6.7
2012
6.6
2013
6.3
2009
6.3
2013
5.6
2015
4.2
2008
6.1
2009
5.4
2016
6.2
2018
4.8
2008
6.6
2009
6.3
2010
6.8
2010
5.7
2012
7.3
2013
6.8
2018
8.1
2018
6.2
2019
6.6
2011
6.4
2011
5.8
2012
5.7
2011
6.0
2014
5.8
2019
7.2
2019
7.3
2008
6.0
2012
4.7