82% (1963)

69% (1960)

63% (1955)

72% (1953)

77% (1952)

73% (1959)

66% (1961)

63% (1949)

61% (1957)

64% (1954)

53% (1954)

71% (1957)

75% (1954)

67% (1949)

60% (1958)

20% (1956)

35% (1954)

62% (1955)

71% (1943)

62% (1961)