70% (2010)

77% (2008)

79% (2003)

71% (2005)

74% (2015)

70% (2016)

67% (2013)

71% (2011)

76% (2017)

74% (1988)

80% (2013)

73% (2015)

82% (2010)

61% (2011)

74% (2006)

65% (2003)

68% (2006)

72% (2011)

60% (2012)

63% (2014)