1951

7.3

1943

4.3

1946

6.3

1956

6.7

1951

7.2

1952

7.7

1954

5.5

1949

5.9

1945

6.0

1952

6.5

1954

6.7

1946

6.8

1936

7.0

1930

6.7

1956

7.5

1952

6.2

1939

6.0

1945

6.5

1957

7.0

1953

6.8