45% (1958)

57% (1957)

55% (1953)

59% (1954)

52% (1950)

58% (1956)

55% (1952)

50% (1949)

73% (1949)

60% (1952)

85% (1958)

54% (1951)

47% (1957)

38% (1958)

58% (1952)

54% (1958)

0% (1958)

62% (1953)

50% (1953)

40% (1950)