1931

8.3

2006

7.0

1989

7.8

1975

7.5

1974

7.1

2010

6.4

2022

6.7

1983

6.4

1976

5.5

1999

8.0

1995

8.0

2017

6.0

2001

5.8

2008

7.5

2010

3.9

2014

3.3

2014

6.4

2015

7.5

2011

7.2

2010

5.4