79% (1955)

72% (1964)

53% (1976)

80% (1943)

51% (1971)

50% (1968)

48% (1965)

47% (1972)

56% (1963)

49% (1970)

69% (1925)

75% (1944)

45% (1973)

71% (1963)

48% (1970)

55% (1966)

45% (1972)

55% (1952)

55% (1949)

60% (1945)