63% (1966)

58% (1976)

50% (1976)

37% (1963)

52% (1961)

40% (1973)

51% (1967)

51% (1966)

50% (1966)

50% (1983)

54% (1962)

0% (1951)

49% (1968)

50% (1969)

53% (1963)

55% (1968)

52% (1963)

55% (1972)

50% (1974)

67% (1970)