2012

6.8

2011

6.3

2017

7.6

2007

7.4

2013

6.9

2015

7.2

2006

6.7

2008

7.3

2017

7.3

2015

7.5

2014

6.5

2018

5.8

2013

6.0

2019

7.4

2013

6.3

2019

6.2

2015

7.1

2023

5.2

2017

7.6