1940

7.9

1956

7.7

1958

8.2

1935

7.3

1946

7.7

1947

6.5

1950

6.2

1951

6.7

1951

6.6

1947

4.8

1946

7.1

1951

7.2

1953

6.1

1949

5.8

1949

6.2

1958

7.1

1947

6.1

1946

6.3

1945

6.7

1958

6.8