1973

7.2

1975

6.6

2014

6.5

1939

7.6

1969

5.8

1958

6.4

1959

5.5

1962

7.4

1946

6.5

1948

6.7

1976

6.2

1956

6.1

1980

6.0

1917

0.0

1976

5.0

1924

0.0

1957

7.2

1971

6.3

1949

6.9

1922

6.0