74% (1992)

70% (1967)

87% (1960)

50% (1973)

70% (1963)

64% (1954)

71% (1957)

54% (1971)

66% (1991)

62% (1954)

52% (1985)

71% (1943)

64% (1949)

56% (1948)

69% (1945)

48% (1967)

59% (1949)

70% (1964)

45% (1992)

52% (1986)