2007

6.9

2008

6.8

2015

6.0

2020

7.0

2005

7.2

2003

7.0

2007

7.3

2015

7.3

2006

6.4

2012

7.0

2015

5.9

2001

7.2

2014

7.6

2018

6.4

2015

6.4

2018

5.6

2004

6.6

2015

6.2

2009

5.6

2010

7.2