79% (1999)

74% (1990)

59% (2014)

86% (2004)

76% (2013)

85% (2012)

54% (2014)

80% (2002)

85% (2014)

86% (2005)

79% (2006)

81% (1971)

83% (2011)

82% (2013)

80% (2018)

69% (1975)

83% (2015)

75% (1983)

76% (2001)

73% (1980)