64% (2017)

65% (2002)

84% (2005)

75% (2009)

77% (2000)

86% (2018)

74% (1990)

76% (2018)

77% (2003)

87% (1999)

61% (1998)

85% (2014)

80% (1999)

79% (2014)

73% (1988)

80% (1996)

43% (1964)

55% (2006)

83% (2013)

84% (2008)