67% (1967)

82% (1962)

56% (1970)

72% (1970)

77% (1966)

70% (1967)

74% (1963)

56% (1968)

47% (1970)

54% (1970)

41% (1972)

67% (1964)

54% (1968)

50% (1970)

74% (1962)

60% (1965)

55% (1966)

57% (1969)

58% (1967)

59% (1966)