60% (2001)

64% (1991)

58% (1988)

50% (1990)

56% (1992)

61% (2002)

67% (2000)

79% (2007)

76% (1992)

76% (1998)

0% (1988)

45% (2011)

88% (2000)

77% (2005)

68% (2014)

35% (2004)

71% (2009)

68% (2000)

70% (2006)

0% (2000)