62% (2009)

30% (2016)

48% (2006)

55% (2008)

78% (2010)

60% (2001)

70% (2005)

76% (2005)

71% (2015)

76% (2013)

83% (2005)

42% (1991)

84% (2014)

79% (2014)

75% (2003)

68% (1979)

85% (2011)

84% (2005)

77% (1979)

65% (2013)