2010

6.3

2014

6.9

2010

7.3

2017

5.6

2011

5.6

2018

7.2

2012

6.2

2010

5.9

2018

6.4

2018

6.9

2011

6.6

2015

6.1

2008

5.2

2007

5.8

2000

7.4

2004

5.7

2009

6.5

2004

6.0

2016

6.8

2012

7.1