73% (1967)

68% (1969)

84% (1984)

60% (1971)

46% (1985)

45% (1982)

48% (1968)

76% (1972)

56% (2000)

55% (1966)

44% (1976)

43% (1970)

61% (1969)

68% (1966)

67% (1966)

77% (1965)

58% (1972)

56% (1969)

80% (1972)

70% (1971)