text: z|Other
  #|No determinable frecuency
  a|Annual
  b|Bimonthly
  c|Semiweekly
  d|Daily
  e|Biweekly
  f|Semiannual
  g|Biennial
  h|Triennial
  i|Three times a week
  j|Three times a month
  k|Continuously updated
  m|Monthly
  q|Quarterly
  s|Semimonthly
  t|Three times a year
  u|Unknown
  w|Weekly
   |No attempt to code
  