77% (1992)

72% (1972)

62% (1994)

60% (1985)

74% (1986)

90% (1989)

76% (1988)

95% (1992)

80% (1981)

72% (1999)

60% (1980)

73% (2004)

80% (1990)

65% (1978)

66% (2016)

58% (1984)

81% (1978)

60% (2016)

78% (2014)

76% (2006)