76% (2003)

84% (2005)

84% (2008)

74% (2003)

76% (2000)

81% (2017)

78% (2010)

82% (2005)

81% (2017)

78% (2010)

78% (2002)

76% (2009)

78% (1957)

80% (2007)

81% (2005)

80% (2018)

75% (1984)

80% (2017)

76% (2009)

76% (2012)