76% (1965)

73% (1974)

79% (1973)

49% (1944)

38% (1959)

69% (1968)

40% (1962)

79% (1961)

56% (1964)

47% (1988)

65% (1982)

58% (1979)

71% (1991)

31% (1980)

59% (1972)

55% (1967)

48% (1973)

72% (1976)

53% (1965)

60% (1965)