64% (1966)

83% (1962)

68% (1967)

57% (1970)

55% (1970)

70% (1967)

77% (1966)

72% (1970)

51% (1970)

56% (1969)

50% (1969)

73% (1972)

45% (1961)

74% (1963)

56% (1966)

63% (1963)

68% (1971)

60% (1965)

74% (1962)

63% (1966)