81% (2020)

66% (2018)

72% (1954)

63% (2007)

57% (1975)

64% (2003)

60% (2010)

75% (1949)

56% (2013)

58% (2007)

54% (2004)

67% (2020)

64% (1969)

64% (1995)

65% (2007)

80% (1980)

59% (1992)

56% (2017)

62% (2013)

71% (1960)