76% (2001)

70% (2007)

70% (2013)

86% (2009)

78% (2016)

69% (1998)

82% (2006)

78% (1994)

85% (2004)

77% (1996)

84% (2004)

77% (1999)

78% (1994)

58% (1985)

60% (2003)

76% (2003)

72% (2002)

76% (2004)

76% (1994)

64% (2004)