82% (1979)

72% (2014)

80% (1997)

79% (2014)

76% (2009)

67% (1992)

63% (2014)

74% (2008)

77% (2015)

74% (2006)

70% (2017)

77% (2015)

70% (2004)

77% (2016)

78% (2017)

73% (2011)

74% (2002)

76% (1987)

72% (2017)

85% (1999)