1984

8.4

2015

7.7

2012

6.4

2012

6.3

2004

8.1

2001

7.8

2015

7.5

2012

7.5

5.8

2002

8.2

2008

7.6

2014

6.7

2008

6.7

2006

8.6

2004

8.6

2011

8.4

2022

7.0

2005

7.9

1994

8.0

2020

8.1