| Value | Category |
|---|---|
| 011 | Workers in the armed forces |
| 012 | Workers in occupations not identified or not clearly declared |
| 111 | Members of the executive or legislative branches |
| 112 | Directive personnel in the public sector |
| 113 | Members of local and small town governments |
| 114 | Directors of political, labor, and civil association organizations |
| 121 | General directors and general managers of companies |
| 122 | Directors of production and operations departments |
| 123 | Other department directors |
| 131 | Company managers |
| 211 | Physicists, chemists, and related occupations |
| 212 | Mathematicians, statisticians, and related occupations |
| 213 | Computer science professionals |
| 214 | Architects, engineers, and related occupations |
| 221 | Biological science and other disciplines related to organic beings professionals |
| 222 | Medical doctors and related occupation professionals (except nurses and midwifes) |
| 223 | Higher level nursing personnel |
| 231 | Professors at universities and other higher education institutions |
| 232 | High school teachers |
| 233 | Primary and pre-primary teachers and instructors |
| 234 | Special education teachers and instructors |
| 235 | Other education professionals |
| 241 | Professionals in organization and administration of businesses |
| 242 | Law-related occupations (judges, attorneys, etc.) |
| 243 | Archivists, librarians, curators, and related occupations |
| 244 | Professionals in social and human sciences |
| 245 | Writers, creative artists, and performers |
| 246 | Priests and ministers of different faiths |
| 311 | Physics, chemistry, and engineering technicians |
| 312 | Software and computer science technicians |
| 313 | Optic and electronic equipment operators |
| 314 | Marine and air navigation technicians |
| 315 | Construction, security, health, and quality control supervisors |
| 321 | Intermediate level technicians in biological, agricultural, zoological, and related sciences |
| 322 | Intermediate level professionals in modern medicine and health (except nurses and midwives) |
| 323 | Intermediate level nurses |
| 324 | Traditional medicine practitioners and healers |
| 331 | Intermediate level teachers and instructors |
| 341 | Intermediate level professionals in financial and commercial operations |
| 342 | Commercial agents and brokers |
| 343 | Intermediate level professionals in administration services |
| 344 | Customs, tax collection, and related occupations agents |
| 345 | Policemen and detectives |
| 346 | Intermediate level social workers and assistants |
| 347 | Intermediate level professionals in artistic activities, shows, and sports |
| 348 | Religious ceremony nonclerical assistants |
| 349 | Other intermediate level technicians and professionals, n.e.c. |
| 411 | Secretaries and office machine operators |
| 412 | Accounting and financial assistants |
| 413 | Inventory keepers and transportation personnel |
| 414 | Library and postal and related employees |
| 419 | Other clerical workers |
| 421 | Cashiers, ticket clerks, and related occupations |
| 422 | Customer service and information employees |
| 431 | Heads and supervisors of health, social assistance, education, and justice service institutions |
| 432 | Heads and supervisors of accounting, finance, human resources, archives, and related activities |
| 433 | Heads and supervisors in communication and transportation activities |
| 434 | Heads and supervisors in statistical, information technology, engineering, social research, marketing, and other services |
| 435 | Heads and supervisors in public works (water, electricity, roads, telecommunications, etc.) services |
| 436 | Heads and supervisors in cultural and entertainment services |
| 437 | Heads and supervisors in commercial activities |
| 438 | Other heads and supervisors in activities n.e.c. |
| 511 | Workers in direct passenger service |
| 512 | Butlers and house service, and restaurant service workers |
| 513 | Personal care and related activities workers |
| 514 | Other personal service workers |
| 515 | Astrologer, fortunetellers, and related occupations |
| 516 | Protection and security service workers |
| 521 | Fashion, art, and advertising models |
| 522 | Salespeople, promoters, and related occupations |
| 523 | Owners of wholesale and retail sale establishments |
| 611 | Workers in agricultural activities |
| 612 | Workers in cattle and other animal breeding activities |
| 613 | Workers in forestry and wooding activities |
| 614 | Workers in fishing, hunting, and trap setting activities |
| 621 | Foremen in farming operations |
| 711 | Mine and quarry workers |
| 712 | Structural construction and related workers |
| 713 | Construction finishing and related workers |
| 714 | Painters, varnishers, cleaners and related occupations |
| 721 | Welders, furnace operators, metallic structures installers, and related occupations |
| 722 | Blacksmiths, locksmiths, and related occupations |
| 723 | Mechanics and machine maintenance workers |
| 724 | Mechanics and electric and electronic equipment maintenance workers |
| 731 | Mechanics and precision instrument repair people |
| 732 | Potters, glass artists, and related occupations |
| 733 | Wood, fabrics, leather and related materials artisans |
| 734 | Graphic arts and related workers |
| 735 | Artisans and workers in the production of paper and cardboard products |
| 741 | Workers in the food, beverage, and tobacco industries |
| 742 | Wood artisans, cabinet-makers and related occupations |
| 743 | Workers in the textile, apparel, and related industries |
| 744 | Workers in the fur, leather and footwear industries |
| 751 | Heads and supervisors in the extraction and construction industries |
| 752 | Heads and supervisors in the metallurgical, mechanical, and related industry |
| 753 | Heads and supervisors of tile, glass, and graphic arts workers, and wood, textiles, and leather artisans |
| 754 | Other heads and supervisors in the manufacturing industry, n.e.c. |
| 811 | Mining plant operators |
| 812 | Metal processing plant operators |
| 813 | Glass, ceramic and related plant operators |
| 814 | Wood processing and paper plant operators |
| 815 | Chemical treatment plant operators |
| 816 | Energy and related production plant operators |
| 821 | Metal and mineral product machine operators |
| 822 | Chemical product machine operators |
| 823 | Rubber and plastic product machine operators |
| 824 | Wood product machine operators |
| 825 | Printing, binding, and paper product machine operators |
| 826 | Textile and leather products machine operators |
| 827 | Food products machine operators |
| 828 | Installers |
| 829 | Other machine operators and installers |
| 831 | Train machinists and related occupations |
| 832 | Motor vehicle drivers |
| 833 | Agricultural and other mobile machine operators |
| 834 | Sailors and related occupations |
| 911 | Peddlers and related occupations |
| 912 | Bootblacks, and other street workers |
| 913 | Domestic service and related activities personnel |
| 914 | Superintendents, window washers and related activities |
| 915 | Messengers, door people, and related occupations |
| 916 | Trash collectors, swipers, and related occupations |
| 921 | Workers in mining and construction |
| 922 | Workers in the manufacturing industry |
| 923 | Transportation, commerce, and other workers n.e.c. |
| 998 | Never worked |
| 999 | NIU (not in universe) |
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