50% (1964)

50% (1958)

50% (1975)

50% (1983)

37% (1985)

50% (1962)

50% (1979)

52% (1961)

64% (1974)

50% (1965)

50% (1974)

53% (1963)

37% (1974)

50% (1969)

50% (1962)

50% (1983)

0% (1961)

41% (1976)

63% (1971)

55% (1970)