61% (1972)

56% (1972)

59% (1979)

61% (1969)

55% (1964)

0% (1969)

50% (1971)

58% (1985)

70% (1976)

48% (1979)

65% (1986)

55% (1984)

49% (1979)

74% (1964)

56% (1981)

50% (1971)

50% (1968)

60% (1981)

42% (1967)

32% (1977)