59% (1966)

62% (1982)

49% (1980)

32% (1968)

42% (1979)

61% (1964)

68% (1955)

40% (1963)

67% (1972)

65% (1971)

63% (1960)

68% (1979)

64% (1962)

63% (1963)

65% (1958)

65% (1960)

67% (1984)

82% (1959)

59% (1959)

64% (1954)