53% (1963)

64% (1956)

50% (1956)

53% (1956)

35% (1956)

65% (1958)

80% (1973)

54% (1961)

80% (1952)

70% (1952)

53% (1949)

73% (1965)

47% (1964)

55% (1957)

54% (1962)

64% (1958)

48% (1974)

30% (1951)

68% (1952)

52% (1967)