10% (2004)

78% (2006)

77% (2001)

83% (2010)

73% (2015)

80% (1992)

83% (2015)

92% (1993)

60% (2006)

95% (2017)

79% (2004)

73% (2003)

0% (1970)

50% (2010)

74% (2009)

64% (2011)

80% (2015)

97% (1987)

46% (1988)

68% (2004)