1961

7.7

1924

7.8

1955

7.2

1955

6.8

1965

7.7

1941

7.4

2005

4.8

1960

7.5

1977

6.9

1966

6.7

1990

6.4

2011

7.1

1963

6.7

1957

7.9

2006

6.3

1949

8.0

1935

7.2

1970

7.0

2002

6.1

1992

8.9