67% (2015)

62% (2015)

68% (2003)

67% (2006)

79% (1985)

77% (2013)

74% (2016)

74% (1982)

65% (1995)

58% (2015)

60% (2005)

74% (1954)

72% (2006)

61% (2008)

57% (2006)

80% (2017)

77% (1966)

61% (2012)

63% (2005)

73% (2013)