55% (1962)

63% (1956)

60% (1951)

80% (1952)

65% (1958)

45% (1947)

54% (1961)

53% (1959)

58% (1960)

52% (1967)

80% (1953)

70% (1954)

52% (1948)

48% (1974)

53% (1963)

53% (1949)

50% (1957)

57% (1948)

64% (1958)

50% (1962)