47% (1976)

65% (1972)

63% (1957)

20% (1973)

58% (1946)

57% (1965)

45% (1976)

64% (1961)

60% (1963)

78% (1965)

72% (1968)

49% (1986)

65% (1951)

48% (1980)

67% (1982)

70% (1981)

0% (1971)

80% (1963)

0% (1977)

66% (1985)