65% (1994)

70% (1985)

80% (1961)

76% (2015)

58% (2013)

60% (1989)

66% (1995)

67% (1974)

76% (2006)

70% (2005)

81% (1927)

77% (1995)

70% (2004)

72% (2007)

52% (2012)

69% (2014)

69% (1994)

59% (2007)

64% (1997)

61% (1998)