87% (1960)

74% (1992)

64% (1954)

71% (1967)

70% (1964)

62% (1954)

66% (1991)

71% (1957)

54% (1971)

64% (1949)

70% (1963)

59% (1949)

64% (1948)

50% (1973)

43% (1968)

54% (1992)

54% (1951)

56% (1948)

71% (1943)

50% (1946)