54% (2014)

64% (1992)

80% (1999)

74% (1990)

77% (2013)

59% (2011)

84% (1994)

85% (2012)

80% (2009)

57% (1980)

65% (1951)

69% (1981)

75% (1962)

84% (2014)

58% (2014)

80% (1966)

74% (1995)

60% (1965)

86% (2005)

83% (1989)