72% (1963)

53% (1994)

77% (1953)

64% (1976)

65% (2012)

76% (1962)

62% (1960)

65% (1964)

62% (1951)

54% (1974)

57% (2004)

54% (2016)

68% (1961)

70% (1961)

73% (1970)

64% (2019)

40% (1967)

57% (1960)

56% (1988)

53% (2013)