anchor.diff:  2,"Randwick, Whiteshill and Ruscombe",E07000082,Stroud,DIS,E05010982,
   2,Abbeydale,E07000081,Gloucester,DIS,E05010950,
   2,Alresford and Itchen Valley,E07000094,Winchester,DIS,E05010995,
  -2,Barnwood,E07000083,Gloucester,DIS,E05010952,
  -2,Barton and Tredworth,E07000084,Gloucester,DIS,E05010953,
  +2,Barnwood,E07000081,Gloucester,DIS,E05010952,
  +2,Barton and Tredworth,E07000081,Gloucester,DIS,E05010953,
   2,Bedminster,E06000023,Bristol,UTA,E05010887,
   2,Bishopston and Ashley Down,E06000023,Bristol,UTA,E05010888,
   2,Bishopsworth,E06000023,Bristol,UTA,E05010889,
  
positive.code: 3,Gleadless Valley,E08000019,Sheffield,MTD,E05010870,
  3,Glebe,E07000138,Lincoln,DIS,E05010789,
  3,Goldsworth Park,E07000217,Woking,DIS,E05010797,
  3,Grange,E07000087,Gloucester,DIS,E05010956,
  3,Graves Park,E08000019,Sheffield,MTD,E05010871,
  3,Great Sankey North and Whittle Hall,E06000007,Warrington,UTA,E05011032,
  3,Great Sankey South,E06000007,Warrington,UTA,E05001606,
  
negative.code: 2,Stoke Bishop,E06000023,Bristol,UTA,E05010916,
  2,West,E06000031,Peterborough,UTA,E05010825,
  2,Westbrook,E06000007,Warrington,UTA,E05001618,
  2,Westgate,E07000081,Gloucester,DIS,E05010967,
  2,Widewater,E07000223,Adur,DIS,E05007575,
  2,Windmill Hill,E06000023,Bristol,UTA,E05010918,
  3,"Adderbury, Bloxham and Bodicote",E07000177,Cherwell,DIS,E05010919,
  