84% (1965)

68% (1967)

78% (1961)

79% (1962)

71% (1960)

74% (1965)

56% (1983)

72% (1966)

60% (1966)

73% (1963)

55% (1966)

63% (1961)

59% (1965)

50% (1966)

64% (1966)

48% (1968)

67% (1969)

76% (1963)

50% (1976)

52% (1963)