81% (2005)

81% (1989)

85% (2018)

74% (1999)

83% (2005)

83% (2018)

67% (1989)

70% (2005)

79% (2009)

81% (2011)

78% (2001)

85% (2000)

84% (1999)

82% (2005)

81% (2020)

84% (1993)

78% (2011)

67% (2009)

82% (1997)

54% (1982)