45% (2015)

37% (2001)

83% (2013)

88% (1996)

60% (1985)

71% (2010)

56% (1981)

69% (2009)

40% (2003)

50% (2008)

76% (2013)

79% (2002)

56% (2001)

82% (2006)

78% (1979)

84% (2011)

79% (2006)

72% (2008)

50% (1998)

0% (2012)