67% (1996)

69% (2005)

73% (1942)

75% (1940)

63% (1993)

67% (1973)

66% (2011)

67% (1965)

67% (1956)

62% (1954)

72% (1943)

72% (1937)

68% (1946)

71% (1973)

56% (1945)

70% (1949)

60% (1999)

72% (1987)

66% (1976)

52% (1998)