80% (2010)

57% (1991)

69% (2014)

73% (1994)

69% (2015)

71% (1993)

75% (2011)

71% (2008)

87% (2007)

78% (1998)

76% (2013)

60% (1990)

71% (2012)

59% (1996)

70% (2013)

86% (2005)

68% (2010)

71% (2006)

74% (2004)

77% (2009)