1974

7.2

1964

6.9

1943

4.5

1954

5.4

1953

4.8

1971

8.0

1969

7.6

1943

7.7

1903

7.0

1938

5.0

1943

6.0

1950

5.0

1962

3.7

1945

5.1

1957

6.4

1981

6.6

1970

6.7

1975

5.9

1969

5.8

1939

6.4