81% (2009)

84% (1999)

87% (2010)

70% (2016)

83% (2001)

67% (2005)

84% (1992)

85% (2000)

79% (2000)

73% (2004)

84% (2010)

45% (2000)

80% (1990)

44% (2004)

88% (2004)

81% (1993)

71% (2005)

76% (2005)

70% (2001)

0% (2007)