66% (2015)

76% (1980)

73% (2016)

69% (2015)

68% (2006)

62% (1987)

65% (2007)

70% (1987)

71% (2016)

53% (2010)

0% (1970)

71% (2012)

73% (2006)

64% (1991)

72% (2016)

59% (2013)

69% (1983)

68% (2014)

77% (1967)

67% (2009)