| Value | Category | 
                                    
                    
                        | 000 | NIU (not in universe) | 
                                    
                    
                        | 010 | Agricultural production, crops | 
                                    
                    
                        | 011 | Agricultural production, livestock | 
                                    
                    
                        | 020 | Agricultural services, except horticultural | 
                                    
                    
                        | 021 | Horticultural services | 
                                    
                    
                        | 030 | Forestry | 
                                    
                    
                        | 031 | Fishing, hunting, and trapping | 
                                    
                    
                        | 040 | Metal mining | 
                                    
                    
                        | 041 | Coal mining | 
                                    
                    
                        | 042 | Crude petroleum and natural gas extraction | 
                                    
                    
                        | 050 | Nonmetallic mining and quarrying, except fuel | 
                                    
                    
                        | 060 | All construction | 
                                    
                    
                        | 100 | Meat products | 
                                    
                    
                        | 101 | Dairy products | 
                                    
                    
                        | 102 | Canned and preserved fruits and vegetables | 
                                    
                    
                        | 110 | Grain mill products | 
                                    
                    
                        | 111 | Bakery products | 
                                    
                    
                        | 112 | Sugar and confectionery products | 
                                    
                    
                        | 120 | Beverage industries | 
                                    
                    
                        | 121 | Miscellaneous food preparations and kindred products | 
                                    
                    
                        | 122 | Food industries, n.s. | 
                                    
                    
                        | 130 | Tobacco manufactures | 
                                    
                    
                        | 132 | Knitting mills | 
                                    
                    
                        | 140 | Dyeing and finishing textiles, except wool and knit goods | 
                                    
                    
                        | 141 | Floor coverings, except hard surface | 
                                    
                    
                        | 142 | Yarn, thread, and fabric mills | 
                                    
                    
                        | 150 | Miscellaneous textile mill products | 
                                    
                    
                        | 151 | Apparel and accessories, except knit | 
                                    
                    
                        | 152 | Miscellaneous fabricated textile products | 
                                    
                    
                        | 160 | Pulp, paper, and paperboard mills | 
                                    
                    
                        | 161 | Miscellaneous paper and pulp products | 
                                    
                    
                        | 162 | Paperboard containers and boxes | 
                                    
                    
                        | 171 | Newspaper publishing and printing | 
                                    
                    
                        | 172 | Printing, publishing, and allied industries, except newspapers | 
                                    
                    
                        | 180 | Plastics, synthetics, and resins | 
                                    
                    
                        | 181 | Drugs | 
                                    
                    
                        | 182 | Soaps and cosmetics | 
                                    
                    
                        | 190 | Paints, varnishes, and related products | 
                                    
                    
                        | 191 | Agricultural chemicals | 
                                    
                    
                        | 192 | Industrial and miscellaneous chemicals | 
                                    
                    
                        | 200 | Petroleum refining | 
                                    
                    
                        | 201 | Miscellaneous petroleum and coal products | 
                                    
                    
                        | 210 | Tires and inner tubes | 
                                    
                    
                        | 211 | Other rubber products, and plastics footwear and belting | 
                                    
                    
                        | 212 | Miscellaneous plastics products | 
                                    
                    
                        | 220 | Leather tanning and finishing | 
                                    
                    
                        | 221 | Footwear, except rubber and plastic | 
                                    
                    
                        | 222 | Leather products, except footwear | 
                                    
                    
                        | 230 | Logging | 
                                    
                    
                        | 231 | Sawmills, planing mills, and millwork | 
                                    
                    
                        | 232 | Wood buildings and mobile homes | 
                                    
                    
                        | 241 | Miscellaneous wood products | 
                                    
                    
                        | 242 | Furniture and fixtures | 
                                    
                    
                        | 250 | Glass and glass products | 
                                    
                    
                        | 251 | Cement, concrete, gypsum, and plaster products | 
                                    
                    
                        | 252 | Structural clay products | 
                                    
                    
                        | 261 | Pottery and related products | 
                                    
                    
                        | 262 | Miscellaneous nonmetallic mineral and stone products | 
                                    
                    
                        | 270 | Blast furnaces, steelworks, rolling and finishing mills | 
                                    
                    
                        | 271 | Iron and steel foundries | 
                                    
                    
                        | 272 | Primary aluminum industries | 
                                    
                    
                        | 280 | Other primary metal industries | 
                                    
                    
                        | 281 | Cutlery, hand tools, and other hardware | 
                                    
                    
                        | 282 | Fabricated structural metal products | 
                                    
                    
                        | 290 | Screw machine products | 
                                    
                    
                        | 291 | Metal forgings and stampings | 
                                    
                    
                        | 292 | Ordnance | 
                                    
                    
                        | 300 | Miscellaneous fabricated metal products | 
                                    
                    
                        | 301 | Metal industries, n.s. | 
                                    
                    
                        | 310 | Engines and turbines | 
                                    
                    
                        | 311 | Farm machinery and equipment | 
                                    
                    
                        | 312 | Construction and material handling machines | 
                                    
                    
                        | 320 | Metalworking machinery | 
                                    
                    
                        | 321 | Office and accounting machines | 
                                    
                    
                        | 322 | Electronic computing equipment | 
                                    
                    
                        | 331 | Machinery, except electrical, n.e.c. | 
                                    
                    
                        | 332 | Machinery, n.s. | 
                                    
                    
                        | 340 | Household appliances | 
                                    
                    
                        | 341 | Radio, T.V., and communication equipment | 
                                    
                    
                        | 342 | Electrical machinery, equipment, and supplies, n.e.c. | 
                                    
                    
                        | 350 | Electrical machinery, equipment, and supplies, n.s. | 
                                    
                    
                        | 351 | Motor vehicles and motor vehicle equipment | 
                                    
                    
                        | 352 | Aircraft and parts | 
                                    
                    
                        | 360 | Ship and boat building and repairing | 
                                    
                    
                        | 361 | Railroad locomotives and equipment | 
                                    
                    
                        | 362 | Guided missiles, space vehicles, and parts | 
                                    
                    
                        | 370 | Cycles and miscellaneous transportation equipment | 
                                    
                    
                        | 371 | Scientific and controlling instruments | 
                                    
                    
                        | 372 | Optical and health services and supplies | 
                                    
                    
                        | 380 | Photographic equipment and supplies | 
                                    
                    
                        | 381 | Watches, clocks, and clockwork operated devices | 
                                    
                    
                        | 382 | Professional equipment, n.s. | 
                                    
                    
                        | 390 | Toys, amusement, and sporting goods | 
                                    
                    
                        | 391 | Miscellaneous manufacturing industries | 
                                    
                    
                        | 392 | Manufacturing industries, n.s. | 
                                    
                    
                        | 400 | Railroads | 
                                    
                    
                        | 401 | Bus service and urban transit | 
                                    
                    
                        | 402 | Taxicab service | 
                                    
                    
                        | 410 | Trucking service | 
                                    
                    
                        | 411 | Warehousing and storage | 
                                    
                    
                        | 412 | U.S. Postal Service | 
                                    
                    
                        | 420 | Water transportation | 
                                    
                    
                        | 421 | Air transportation | 
                                    
                    
                        | 422 | Pipelines, except natural gas | 
                                    
                    
                        | 432 | Services incidental to transportation | 
                                    
                    
                        | 440 | Radio and television broadcasting | 
                                    
                    
                        | 441 | Telephone | 
                                    
                    
                        | 442 | Telegraph and miscellaneous communication services | 
                                    
                    
                        | 460 | Electric light and power | 
                                    
                    
                        | 461 | Gas and steam supply systems | 
                                    
                    
                        | 462 | Electric and gas, and other combinations | 
                                    
                    
                        | 470 | Water supply and irrigation | 
                                    
                    
                        | 471 | Sanitary services | 
                                    
                    
                        | 472 | Utilities, n.s. | 
                                    
                    
                        | 500 | Motor vehicles and equipment | 
                                    
                    
                        | 501 | Furniture and home furnishings | 
                                    
                    
                        | 502 | Lumber and construction materials | 
                                    
                    
                        | 510 | Sporting goods, toys, and hobby goods | 
                                    
                    
                        | 511 | Metals and minerals, except petroleum | 
                                    
                    
                        | 512 | Electrical goods | 
                                    
                    
                        | 521 | Hardware, plumbing and heating supplies | 
                                    
                    
                        | 522 | Electrical and hardware products, n.s. | 
                                    
                    
                        | 530 | Machinery, equipment, and supplies | 
                                    
                    
                        | 531 | Scrap and waste materials | 
                                    
                    
                        | 532 | Miscellaneous wholesale, durable goods | 
                                    
                    
                        | 540 | Paper and paper products | 
                                    
                    
                        | 541 | Drugs, chemicals, and allied products | 
                                    
                    
                        | 542 | Apparel, fabrics, and notions | 
                                    
                    
                        | 550 | Groceries and related products | 
                                    
                    
                        | 551 | Farm products--raw materials | 
                                    
                    
                        | 552 | Petroleum products | 
                                    
                    
                        | 560 | Alcoholic beverages | 
                                    
                    
                        | 561 | Farm supplies | 
                                    
                    
                        | 562 | Miscellaneous wholesale, nondurable goods | 
                                    
                    
                        | 571 | Wholesale trade, n.s. | 
                                    
                    
                        | 580 | Lumber and building material retailing | 
                                    
                    
                        | 581 | Hardware stores | 
                                    
                    
                        | 582 | Retail nurseries and garden stores | 
                                    
                    
                        | 590 | Mobile home dealers | 
                                    
                    
                        | 591 | Department stores | 
                                    
                    
                        | 592 | Variety stores | 
                                    
                    
                        | 600 | Miscellaneous general merchandise stores | 
                                    
                    
                        | 601 | Grocery stores | 
                                    
                    
                        | 602 | Dairy products stores | 
                                    
                    
                        | 610 | Retail bakeries | 
                                    
                    
                        | 611 | Food stores, n.e.c. | 
                                    
                    
                        | 612 | Motor vehicle dealers | 
                                    
                    
                        | 620 | Auto and home supply stores | 
                                    
                    
                        | 621 | Gasoline service stations | 
                                    
                    
                        | 622 | Miscellaneous vehicle dealers | 
                                    
                    
                        | 630 | Apparel and accessory stores, except shoe | 
                                    
                    
                        | 631 | Shoe stores | 
                                    
                    
                        | 632 | Furniture and home furnishings stores | 
                                    
                    
                        | 640 | Household appliances, T.V., and radio stores | 
                                    
                    
                        | 641 | Eating and drinking places | 
                                    
                    
                        | 642 | Drug stores | 
                                    
                    
                        | 650 | Liquor stores | 
                                    
                    
                        | 651 | Sporting goods, bicycles, and hobby stores | 
                                    
                    
                        | 652 | Book and stationery stores | 
                                    
                    
                        | 660 | Jewelry stores | 
                                    
                    
                        | 661 | Sewing, needlework, and piece goods stores | 
                                    
                    
                        | 662 | Mail order houses | 
                                    
                    
                        | 670 | Vending machine operators | 
                                    
                    
                        | 671 | Direct selling establishments | 
                                    
                    
                        | 672 | Fuel and ice dealers | 
                                    
                    
                        | 681 | Retail florists | 
                                    
                    
                        | 682 | Miscellaneous retail stores | 
                                    
                    
                        | 691 | Retail trade, n.s. | 
                                    
                    
                        | 700 | Banking | 
                                    
                    
                        | 701 | Savings and loan associations | 
                                    
                    
                        | 702 | Credit agencies, n.e.c. | 
                                    
                    
                        | 710 | Security, commodity brokerage, and investment companies | 
                                    
                    
                        | 711 | Insurance | 
                                    
                    
                        | 712 | Real estate, including real estate-insurance-law offices | 
                                    
                    
                        | 721 | Advertising | 
                                    
                    
                        | 722 | Services to dwellings and other buildings | 
                                    
                    
                        | 730 | Commercial research, development, and testing labs | 
                                    
                    
                        | 731 | Personnel supply services | 
                                    
                    
                        | 732 | Business management and consulting services | 
                                    
                    
                        | 740 | Computer and data processing services | 
                                    
                    
                        | 741 | Detective and protective services | 
                                    
                    
                        | 742 | Business services, n.e.c. | 
                                    
                    
                        | 750 | Automotive services, except repair | 
                                    
                    
                        | 751 | Automotive repair shops | 
                                    
                    
                        | 752 | Electrical repair shops | 
                                    
                    
                        | 760 | Miscellaneous repair services | 
                                    
                    
                        | 761 | Private households | 
                                    
                    
                        | 762 | Hotels and motels | 
                                    
                    
                        | 770 | Lodging places, except hotels and motels | 
                                    
                    
                        | 771 | Laundry, cleaning, and garment services | 
                                    
                    
                        | 772 | Beauty shops | 
                                    
                    
                        | 780 | Barber shops | 
                                    
                    
                        | 781 | Funeral service and crematories | 
                                    
                    
                        | 782 | Shoe repair shops | 
                                    
                    
                        | 790 | Dressmaking shops | 
                                    
                    
                        | 791 | Miscellaneous personal services | 
                                    
                    
                        | 800 | Theaters and motion pictures | 
                                    
                    
                        | 801 | Bowling alleys, billiard and pool parlors | 
                                    
                    
                        | 802 | Miscellaneous entertainment and recreation services | 
                                    
                    
                        | 812 | Offices of physicians | 
                                    
                    
                        | 820 | Offices of dentists | 
                                    
                    
                        | 821 | Offices of chiropractors | 
                                    
                    
                        | 822 | Offices of optometrists | 
                                    
                    
                        | 830 | Offices of health practitioners, n.e.c. | 
                                    
                    
                        | 831 | Hospitals | 
                                    
                    
                        | 832 | Nursing and personal care facilities | 
                                    
                    
                        | 840 | Health services, n.e.c. | 
                                    
                    
                        | 841 | Legal services | 
                                    
                    
                        | 842 | Elementary and secondary schools | 
                                    
                    
                        | 850 | Colleges and universities | 
                                    
                    
                        | 851 | Business, trade, and vocational schools | 
                                    
                    
                        | 852 | Libraries | 
                                    
                    
                        | 860 | Educational services, n.e.c. | 
                                    
                    
                        | 861 | Job training and vocational rehabilitation services | 
                                    
                    
                        | 862 | Child day care services | 
                                    
                    
                        | 870 | Residential care facilities, without nursing | 
                                    
                    
                        | 871 | Social services, n.e.c. | 
                                    
                    
                        | 872 | Museums, art galleries, and zoos | 
                                    
                    
                        | 880 | Religious organizations | 
                                    
                    
                        | 881 | Membership organizations | 
                                    
                    
                        | 882 | Engineering, architectural, and surveying services | 
                                    
                    
                        | 890 | Accounting, auditing, and bookkeeping services | 
                                    
                    
                        | 891 | Noncommercial educational and scientific research | 
                                    
                    
                        | 892 | Miscellaneous professional and related services | 
                                    
                    
                        | 900 | Executive and legislative offices | 
                                    
                    
                        | 901 | General government, n.e.c. | 
                                    
                    
                        | 910 | Justice, public order, and safety | 
                                    
                    
                        | 921 | Public finance, taxation, and monetary policy | 
                                    
                    
                        | 922 | Administration of human resources programs | 
                                    
                    
                        | 930 | Administration of environmental quality and housing programs | 
                                    
                    
                        | 931 | Administration of economic programs | 
                                    
                    
                        | 932 | National security and international affairs | 
                                    
                    
                        | 991 | Unemployed, last job armed forces | 
                                    
                    
                        | 992 | Unemployed, has not worked in last 5 years | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.