1965

7.1

1957

6.9

1956

7.5

1961

7.0

1958

7.4

1959

6.2

1953

0.0

1962

0.0

1960

5.9

1954

6.0

1959

8.1

1963

0.0

1956

7.1

1961

0.0

1963

0.0