81% (2005)

80% (1989)

74% (1999)

84% (2018)

83% (2005)

67% (1989)

82% (2018)

70% (2005)

79% (2009)

81% (2011)

85% (2000)

84% (1999)

78% (2001)

82% (2005)

84% (1993)

78% (2011)

81% (2020)

80% (1972)

73% (2011)

68% (2009)