76% (2003)

73% (1998)

63% (2001)

79% (2000)

81% (1981)

79% (2004)

48% (2022)

69% (2005)

78% (1987)

66% (2006)

78% (2012)

65% (2012)

74% (2015)

69% (2014)

77% (2015)

73% (1999)

72% (1977)

69% (2008)

74% (2010)

72% (2016)