anchor.diff:  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)"
  -7225,"Restaurants and Other Eating Places"
   81,"Other Services (except Public Administration)"
   811,"Repair and Maintenance"
   8111,"Automotive Repair and Maintenance"
  
positive.code: 6222,"Psychiatric and Substance Abuse Hospitals"
  6223,"Specialty (except Psychiatric and Substance Abuse) Hospitals"
  623,"Nursing and Residential Care Facilities"
  6231,"Nursing Care Facilities (Skilled Nursing Facilities)"
  6232,"Residential Intellectual and Developmental Disability, Mental Health, and Substance Abuse Facilities"
  6233,"Continuing Care Retirement Communities and Assisted Living Facilities for the Elderly"
  6239,"Other Residential Care Facilities"
  624,"Social Assistance"
  6241,"Individual and Family Services"
  
negative.code: 5172,"Wireless Telecommunications Carriers (except Satellite)"
  5174,"Satellite Telecommunications"
  5179,"Other Telecommunications"
  518,"Data Processing, Hosting and Related Services"
  5182,"Data Processing, Hosting, and Related Services"
  519,"Other Information Services"
  5191,"Other Information Services"
  