ceilings = 

  A: 1000

  B: 1500

  C: 1800

  D: 4000

  E: 5000

  F: 5200

  G: 6000

  H: 6800

  I: 9000

  J: 9730



toDivision = (code) ->

  for division, ceiling of ceilings

    return division if code < ceiling

  "Unknown"



sicCodes.map toDivision