1978

7.4

1953

7.7

1933

6.0

1941

7.3

1939

8.0

2014

7.2

2002

7.1

1970

7.0

1931

5.6

1981

6.8

1938

0.0

1993

6.9

1966

7.3

1989

7.2

2006

6.6

1952

7.0

1987

6.4

1990

7.3

1980

6.3

1950

7.7