80% (1955)

73% (1964)

80% (1943)

51% (1971)

50% (1968)

48% (1965)

45% (1972)

53% (1976)

71% (1963)

52% (1963)

65% (1951)

45% (1973)

69% (1925)

49% (1970)

57% (1971)

48% (1970)

58% (1962)

56% (1963)

47% (1972)

41% (1962)