70% (2004)

68% (1997)

78% (2007)

81% (1990)

68% (2003)

50% (1990)

78% (1997)

70% (2016)

88% (2000)

0% (1988)

78% (1987)

87% (2002)

76% (1992)

20% (1986)

72% (2001)

54% (1987)

0% (1988)

60% (1989)

95% (2000)

56% (1987)