67% (1968)

64% (1968)

65% (1964)

69% (1967)

70% (1967)

64% (1969)

67% (1964)

62% (1963)

63% (1966)

35% (1964)

58% (1964)

60% (1964)

57% (1967)

63% (1965)

54% (1967)

64% (1966)

62% (1966)

52% (1962)

49% (1969)

50% (1970)