80% (1999)

83% (2005)

73% (1995)

79% (1964)

77% (2000)

82% (2011)

76% (1997)

81% (1971)

76% (2001)

74% (1990)

72% (2001)

57% (1981)

77% (2008)

85% (2017)

83% (2005)

84% (2018)

77% (2007)

84% (2008)

76% (2002)

69% (2012)