31% (2005)

76% (1983)

58% (1971)

30% (2006)

0% (1973)

10% (1988)

79% (1976)

74% (1986)

60% (1981)

81% (1976)

64% (1976)

82% (1977)

22% (2016)

80% (1977)

68% (1979)

0% (1973)

54% (2000)

35% (2007)

71% (1979)

0% (1969)