69% (2020)

73% (2014)

71% (1964)

82% (1959)

53% (1997)

77% (1949)

60% (1971)

68% (1968)

50% (2018)

62% (2014)

62% (2005)

58% (1994)

56% (1934)

72% (1987)

66% (1973)

75% (1937)

75% (1974)

56% (2014)

77% (1970)

70% (2012)