88% (2002)

68% (1981)

79% (1996)

80% (1998)

86% (2000)

83% (2005)

69% (2004)

80% (1999)

73% (2001)

80% (2002)

78% (2010)

43% (2002)

65% (2017)

46% (2002)

80% (2003)

78% (2015)

80% (2006)

85% (2004)

62% (2013)

73% (1978)