1962

5.7

1972

6.3

1955

6.4

1958

6.3

1954

5.2

1956

7.3

1961

0.0

1965

0.0

1959

6.1

1963

6.0

1960

7.0

1953

5.8

1964

6.9

1964

6.2

1976

6.9

1956

5.9

1952

6.0