1962

6.6

1959

5.1

1942

6.7

1956

7.0

1960

4.3

1939

6.4

1930

5.7

1949

5.7

1947

6.0

1940

6.7

1941

6.3

1941

7.2

1941

5.7

1943

6.5

1943

6.2

1943

7.3

1945

6.3

1945

4.8

1945

5.3

1945

5.7