1971

7.4

1992

6.6

1960

3.0

2014

7.4

1989

8.0

2019

7.2

1967

0.0

2010

7.7

2001

6.2

2009

7.0

1957

0.0

1976

4.6

1988

6.2

1997

5.8

2005

0.0

2012

6.9

1946

6.5

1948

6.0

2002

6.6

1953

4.6