79% (2011)

74% (1999)

80% (1989)

73% (1997)

70% (2005)

82% (2005)

81% (2005)

84% (1993)

83% (2005)

81% (2020)

68% (2009)

77% (2005)

69% (2015)

78% (1964)

66% (1989)

82% (2011)

79% (2009)

85% (2000)

83% (2018)

82% (2016)