1966

8.0

1965

7.7

1960

7.0

1949

6.8

1961

4.0

1955

5.9

1970

6.1

1957

0.0

1956

0.0

1947

3.3

1948

5.5

1949

0.0

1956

0.0

1968

4.0

1953

6.0

1952

7.3

1968

7.6

1958

8.0

1971

0.0