53% (1984)

50% (1979)

65% (1968)

55% (1960)

52% (1971)

60% (1956)

54% (1978)

53% (1976)

58% (1970)

100% (1954)

56% (1970)

50% (1959)

100% (1969)

49% (1968)

48% (1954)

47% (1974)

62% (1958)

20% (1973)

50% (1979)

43% (1975)