70% (2013)

90% (2019)

54% (2010)

64% (1971)

74% (2011)

71% (2015)

69% (1975)

55% (2015)

73% (1988)

65% (2002)

64% (1970)

59% (1952)

67% (2005)

74% (2004)

73% (1980)

58% (1988)

79% (2009)

82% (2003)

78% (1994)

66% (1998)