anchor.diff:  9271,"Space Research and Technology"
   928,"National Security and International Affairs"
   9281,"National Security and International Affairs"
  -99,"Other"
  
positive.code: 7212,"RV (Recreational Vehicle) Parks and Recreational Camps"
  7213,"Rooming and Boarding Houses"
  722,"Food Services and Drinking Places"
  7221,"Full-Service Restaurants"
  7222,"Limited-Service Eating Places"
  7223,"Special Food Services"
  7224,"Drinking Places (Alcoholic Beverages)"
  81,"Other Services (except Public Administration)"
  811,"Repair and Maintenance"
  8111,"Automotive Repair and Maintenance"
  
negative.code: 4481,"Clothing Stores"
  4482,"Shoe Stores"
  4483,"Jewelry, Luggage, and Leather Goods Stores"
  451,"Sporting Goods, Hobby, Musical Instrument, and Book Stores"
  4511,"Sporting Goods, Hobby, and Musical Instrument Stores"
  4512,"Book Stores and News Dealers"
  452,"General Merchandise Stores"
  4521,"Department Stores"
  4529,"Other General Merchandise Stores"
  