52% (1988)

40% (1979)

57% (1990)

70% (1946)

64% (1980)

67% (1982)

57% (1989)

47% (1960)

59% (1950)

65% (1989)

64% (1964)

60% (1975)

50% (1973)

68% (1954)

72% (1972)

65% (1990)

62% (1964)

67% (1979)

62% (1957)

0% (1985)