63% (1965)

39% (1992)

64% (1959)

65% (1966)

66% (1969)

59% (1964)

65% (1963)

64% (1958)

65% (1968)

61% (1962)

64% (1961)

65% (1964)

63% (1959)

60% (1970)

63% (1960)

58% (1963)

67% (1965)

56% (1960)

62% (1961)

66% (1962)