2014

3.7

2008

6.5

2008

7.2

2004

5.3

1956

6.6

2005

6.3

1953

7.3

1994

6.0

1976

7.6

2020

5.2

2022

7.3

1996

5.5

2000

6.2

1987

6.8

1992

6.6

1980

6.9

2004

6.9

1977

7.2

2005

7.0

2007

6.5