53% (1976)

80% (1955)

67% (1961)

80% (1943)

45% (1972)

47% (1972)

51% (1971)

48% (1970)

48% (1965)

49% (1970)

45% (1973)

72% (1964)

57% (1971)

56% (1963)

69% (1925)

50% (1968)

65% (1953)

71% (1963)

65% (1933)

70% (1932)