88% (2002)

80% (1998)

80% (1999)

86% (2000)

79% (2003)

79% (1996)

67% (1981)

82% (2005)

79% (1985)

80% (2006)

77% (2013)

64% (2017)

69% (2004)

43% (2002)

76% (2018)

81% (2002)

48% (2002)

78% (2015)

65% (2001)

61% (2013)