66% (1975)

59% (2008)

58% (2010)

74% (2007)

72% (2009)

74% (1992)

45% (2016)

56% (2018)

66% (2015)

68% (1981)

52% (1927)

70% (1991)

62% (1975)

68% (2007)

73% (2015)

73% (1953)

76% (2013)

72% (2013)

64% (2013)

74% (2018)