anchor.diff:  6222,"Psychiatric and Substance Abuse Hospitals"
   6223,"Specialty (except Psychiatric and Substance Abuse) Hospitals"
   623,"Nursing and Residential Care Facilities"
  -6231,"Nursing Care Facilities"
  -6232,"Residential Mental Retardation, Mental Health and Substance Abuse Facilities"
  -6233,"Community Care Facilities for the Elderly"
  +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"
  
positive.code: 9271,"Space Research and Technology"
  928,"National Security and International Affairs"
  9281,"National Security and International Affairs"
  99,"Other"
  
negative.code: 7212,"RV (Recreational Vehicle) Parks and Recreational Camps"
  7213,"Rooming and Boarding Houses"
  722,"Food Services and Drinking 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"
  