1929

6.5

1935

7.3

1956

7.5

1962

5.6

1977

6.6

1947

6.3

1946

6.7

1944

7.5

1958

6.4

1945

6.4

1946

6.6

1971

6.3

1948

5.9

1975

6.0

2009

7.2

1949

6.8

1959

6.4

1930

0.0

1946

5.6

1959

5.1