2007

8.6

2014

8.1

2010

8.1

2017

7.8

2019

8.2

1983

6.8

2013

7.7

2012

8.3

1992

8.5

1980

7.7

1979

7.7

2017

7.4

2020

7.0

2008

7.5

1987

7.7

2008

7.4

1976

7.9

2003

7.6

2025

9.5

2008

7.8