1950

7.7

2020

6.0

2011

6.7

1951

7.8

2001

5.2

2018

7.8

1939

7.6

1957

8.0

1956

7.1

1953

5.4

1954

7.2

1963

6.5

1961

8.1

2010

6.7

1970

7.0

1988

6.8

1970

6.2

2020

5.8

1927

6.1

1963

7.9