54% (2014)

80% (1999)

58% (2014)

55% (1992)

77% (2013)

74% (1990)

86% (2004)

72% (1993)

70% (1975)

86% (2005)

76% (2001)

84% (2014)

84% (2012)

83% (2013)

84% (2015)

81% (2009)

81% (1971)

63% (1957)

75% (1976)

83% (2011)