53% (1950)

72% (1965)

48% (1974)

58% (1951)

55% (1962)

70% (1954)

53% (1963)

53% (1949)

90% (1952)

65% (1958)

63% (1956)

53% (1959)

60% (1943)

80% (1973)

80% (1953)

54% (1961)

52% (1967)

57% (1948)

64% (1958)

66% (1952)