| Value | Category | 
                                    
                    
                        | 011 | Chemists | 
                                    
                    
                        | 012 | Physicists | 
                                    
                    
                        | 013 | Physical scientists not elsewhere classified | 
                                    
                    
                        | 014 | Physical science technicians | 
                                    
                    
                        | 021 | Architects and town planners | 
                                    
                    
                        | 022 | Civil engineers | 
                                    
                    
                        | 023 | Electrical and electronics engineers | 
                                    
                    
                        | 024 | Mechanical engineers | 
                                    
                    
                        | 025 | Chemical engineers | 
                                    
                    
                        | 026 | Metallurgists | 
                                    
                    
                        | 027 | Mining engineers | 
                                    
                    
                        | 028 | Industrial engineers | 
                                    
                    
                        | 029 | Engineers not elsewhere classified | 
                                    
                    
                        | 031 | Surveyors | 
                                    
                    
                        | 032 | Draughtsmen | 
                                    
                    
                        | 033 | Civil engineering technicians | 
                                    
                    
                        | 034 | Electrical and electronics engineering technicians | 
                                    
                    
                        | 035 | Mechanical engineering technicians | 
                                    
                    
                        | 036 | Chemical engineering technicians | 
                                    
                    
                        | 037 | Metallurgical technicians | 
                                    
                    
                        | 038 | Mining technicians | 
                                    
                    
                        | 039 | Engineering technicians not elsewhere classified | 
                                    
                    
                        | 041 | Aircraft pilots, navigators and flight engineers | 
                                    
                    
                        | 042 | Ships' deck officers and pilots | 
                                    
                    
                        | 043 | Ships' engineers | 
                                    
                    
                        | 049 | Aircraft and ships officers, n.e.c. | 
                                    
                    
                        | 051 | Biologists, zoologists and related scientists | 
                                    
                    
                        | 052 | Bacteriologists, pharmacologists and related scientists | 
                                    
                    
                        | 053 | Agronomists and related scientists | 
                                    
                    
                        | 054 | Life sciences technicians | 
                                    
                    
                        | 059 | Life sciences technicians and related technicians, n.e.c. | 
                                    
                    
                        | 061 | Medical doctors | 
                                    
                    
                        | 062 | Medical assistants | 
                                    
                    
                        | 063 | Dentists | 
                                    
                    
                        | 064 | Dental assistants | 
                                    
                    
                        | 065 | Veterinarians | 
                                    
                    
                        | 066 | Veterinary assistants | 
                                    
                    
                        | 067 | Pharmacists | 
                                    
                    
                        | 068 | Pharmaceutical assistants | 
                                    
                    
                        | 069 | Dietitians and public health nutritionists | 
                                    
                    
                        | 071 | Professional nurses | 
                                    
                    
                        | 072 | Nursing personnel not elsewhere classified | 
                                    
                    
                        | 073 | Professional midwives | 
                                    
                    
                        | 074 | Midwifery personnel not elsewhere classified | 
                                    
                    
                        | 075 | Optometrists and opticians | 
                                    
                    
                        | 076 | Physiotherapists and occupational therapists | 
                                    
                    
                        | 077 | Medical Xray technicians | 
                                    
                    
                        | 079 | Medical, dental, veterinary and related workers not elsewhere classified | 
                                    
                    
                        | 081 | Statisticians | 
                                    
                    
                        | 082 | Mathematicians and actuaries | 
                                    
                    
                        | 083 | Systems Analysts | 
                                    
                    
                        | 084 | Statistical and mathematical technicians | 
                                    
                    
                        | 089 | Statisticians, mathematicians, systems analysts and related technicians, n.e.c. | 
                                    
                    
                        | 090 | Economists | 
                                    
                    
                        | 099 | Other social scientists, n.e.c. | 
                                    
                    
                        | 110 | Accountants | 
                                    
                    
                        | 121 | Lawyers | 
                                    
                    
                        | 122 | Judges | 
                                    
                    
                        | 129 | Jurists not elsewhere classified | 
                                    
                    
                        | 131 | University and higher education teachers | 
                                    
                    
                        | 132 | Secondary education teachers | 
                                    
                    
                        | 133 | Primary education teachers | 
                                    
                    
                        | 134 | Preprimary education teachers | 
                                    
                    
                        | 135 | Special education teachers | 
                                    
                    
                        | 139 | Teachers not elsewhere classified | 
                                    
                    
                        | 141 | Ministers of religion and related members of religious orders | 
                                    
                    
                        | 149 | Workers in religion not elsewhere classified | 
                                    
                    
                        | 151 | Authors and critics | 
                                    
                    
                        | 159 | Authors, journalists and related writers not elsewhere classified | 
                                    
                    
                        | 161 | Sculptors, painters and related artists | 
                                    
                    
                        | 162 | Commercial artists and designers | 
                                    
                    
                        | 163 | Photographers and cameramen | 
                                    
                    
                        | 169 | Sculptors, painters and related artists, n.e.c. | 
                                    
                    
                        | 171 | Composers, musicians and singers | 
                                    
                    
                        | 172 | Choreographers and dancers | 
                                    
                    
                        | 173 | Actors and stage directors | 
                                    
                    
                        | 174 | Producers, performing arts | 
                                    
                    
                        | 175 | Circus performers | 
                                    
                    
                        | 179 | Performing artists not elsewhere classified | 
                                    
                    
                        | 180 | Athletes, sportsmen and related workers | 
                                    
                    
                        | 191 | Librarians, archivists and curators | 
                                    
                    
                        | 192 | Sociologists, anthropologists and related scientists | 
                                    
                    
                        | 193 | Social workers | 
                                    
                    
                        | 194 | Personnel and occupational specialists | 
                                    
                    
                        | 195 | Philologists, translators and interpreters | 
                                    
                    
                        | 199 | Other professional, technical and related workers | 
                                    
                    
                        | 201 | Legislative officials | 
                                    
                    
                        | 202 | Government administrators | 
                                    
                    
                        | 211 | General managers | 
                                    
                    
                        | 212 | Production managers (except farm) | 
                                    
                    
                        | 219 | Managers not elsewhere classified | 
                                    
                    
                        | 299 | Administrative and managerial, n.e.c. | 
                                    
                    
                        | 300 | Clerical supervisors | 
                                    
                    
                        | 310 | Government executive officials | 
                                    
                    
                        | 321 | Stenographers, typists and teletypists | 
                                    
                    
                        | 322 | Card and tapepunching machine operators | 
                                    
                    
                        | 323 | Telex operators | 
                                    
                    
                        | 329 | Stenegraphers, typists and teletypists, n.e.d. | 
                                    
                    
                        | 331 | Bookkeepers and cashiers | 
                                    
                    
                        | 339 | Bookkeepers, cashiers and related workers not elsewhere classified | 
                                    
                    
                        | 341 | Bookkeeping and calculating machine operators | 
                                    
                    
                        | 342 | Automatic dataprocessing machine operators | 
                                    
                    
                        | 349 | Computing machine operators, n.e.c. | 
                                    
                    
                        | 351 | Railway station masters | 
                                    
                    
                        | 352 | Postmasters | 
                                    
                    
                        | 359 | Transport and communications supervisors not elsewhere classified | 
                                    
                    
                        | 360 | Transport conductors | 
                                    
                    
                        | 370 | Mail distribution clerks | 
                                    
                    
                        | 380 | Telephone and telegraph operators | 
                                    
                    
                        | 391 | Stock clerks | 
                                    
                    
                        | 392 | Material and production planning clerks | 
                                    
                    
                        | 393 | Correspondence and reporting clerks | 
                                    
                    
                        | 394 | Receptionists and travel agency clerks | 
                                    
                    
                        | 395 | Library and filing clerks | 
                                    
                    
                        | 399 | Clerks not elsewhere classified | 
                                    
                    
                        | 400 | Managers (wholesale and retail trade) | 
                                    
                    
                        | 410 | Working proprietors (wholesale and retail trade) | 
                                    
                    
                        | 421 | Sales supervisors | 
                                    
                    
                        | 422 | Buyers | 
                                    
                    
                        | 431 | Technical salesmen and service advisers | 
                                    
                    
                        | 432 | Commercial travellers and Manufacturers' agents | 
                                    
                    
                        | 439 | Technical salesmen, commercial travellers and manufacturers' agents, n.e.c. | 
                                    
                    
                        | 441 | Insurance, real estate and securities salesmen | 
                                    
                    
                        | 442 | Business services salesmen | 
                                    
                    
                        | 443 | Auctioneers | 
                                    
                    
                        | 451 | Salesmen, shop assistants and demonstrators | 
                                    
                    
                        | 452 | Street vendors, canvassers and newsvendors | 
                                    
                    
                        | 454 | Itinerant traders | 
                                    
                    
                        | 459 | Salesmen, shop assistants and demonstrators, n.e.c. | 
                                    
                    
                        | 490 | Sales workers not elsewhere classified | 
                                    
                    
                        | 500 | Managers (catering and lodging services) | 
                                    
                    
                        | 510 | Working proprietors (catering and lodging services) | 
                                    
                    
                        | 520 | Housekeeping and related service supervisors | 
                                    
                    
                        | 531 | Cooks | 
                                    
                    
                        | 532 | Waiters, bartenders and related workers | 
                                    
                    
                        | 540 | Maids and related housekeeping service workers not elsewhere classified | 
                                    
                    
                        | 551 | Building caretakers | 
                                    
                    
                        | 552 | Charworkers, cleaners and related workers | 
                                    
                    
                        | 560 | Launderers, drycleaners and pressers | 
                                    
                    
                        | 570 | Hairdressers, barbers, beauticians and related workers | 
                                    
                    
                        | 581 | Firefighters | 
                                    
                    
                        | 582 | Policemen and detectives | 
                                    
                    
                        | 589 | Protective service workers not elsewhere classified | 
                                    
                    
                        | 591 | Guides | 
                                    
                    
                        | 592 | Undertakers and embalmers | 
                                    
                    
                        | 599 | Other service workers | 
                                    
                    
                        | 600 | Farm managers and supervisors | 
                                    
                    
                        | 611 | General farmers | 
                                    
                    
                        | 612 | Specialised farmers | 
                                    
                    
                        | 621 | General farm workers | 
                                    
                    
                        | 622 | Field crop and vegetable farm workers | 
                                    
                    
                        | 623 | Orchard, vineyard and related tree and shrub crop workers | 
                                    
                    
                        | 624 | Livestock workers | 
                                    
                    
                        | 625 | Dairy farm workers | 
                                    
                    
                        | 626 | Poultry farm workers | 
                                    
                    
                        | 627 | Nursery workers and gardeners | 
                                    
                    
                        | 628 | Farm machinery operators | 
                                    
                    
                        | 629 | Agricultural and animal husbandry workers not elsewhere classified | 
                                    
                    
                        | 631 | Loggers | 
                                    
                    
                        | 632 | Forestry workers (except logging) | 
                                    
                    
                        | 639 | Forestry and loggers, n.e.c. | 
                                    
                    
                        | 641 | Fishermen | 
                                    
                    
                        | 649 | Fishermen, hunters and related workers not elsewhere classified | 
                                    
                    
                        | 700 | Production supervisors and general foremen | 
                                    
                    
                        | 711 | Miners and quarrymen | 
                                    
                    
                        | 712 | Mineral and stone treaters | 
                                    
                    
                        | 713 | Well drillers, borers and related workers | 
                                    
                    
                        | 721 | Metal smelting, converting and refining furnacemen | 
                                    
                    
                        | 722 | Metal rollingmill workers | 
                                    
                    
                        | 723 | Metal melters and reheaters | 
                                    
                    
                        | 724 | Metal casters | 
                                    
                    
                        | 725 | Metal moulders and coremakers | 
                                    
                    
                        | 726 | Metal annealers, temperers and casehardeners | 
                                    
                    
                        | 727 | Metal drawers and extruders | 
                                    
                    
                        | 728 | Metal platers and coaters | 
                                    
                    
                        | 729 | Metal processers not elsewhere classified | 
                                    
                    
                        | 731 | Wood treaters | 
                                    
                    
                        | 732 | Sawyers, plywood makers and related woodprocessing workers | 
                                    
                    
                        | 733 | Paper pulp preparers | 
                                    
                    
                        | 734 | Paper makers | 
                                    
                    
                        | 739 | Wood preparation workers and paper makers, n.e.c. | 
                                    
                    
                        | 741 | Crushers, grinders and mixers | 
                                    
                    
                        | 742 | Cookers, roasters and related heattreaters | 
                                    
                    
                        | 743 | Filter and separator operators | 
                                    
                    
                        | 744 | Still and reactor operators | 
                                    
                    
                        | 745 | Petroleum refining workers | 
                                    
                    
                        | 749 | Chemical processers and related workers not elsewhere classified | 
                                    
                    
                        | 751 | Fibre preparers | 
                                    
                    
                        | 752 | Spinners and winders | 
                                    
                    
                        | 753 | Weaving and knittingmachine setters and patterncard preparers | 
                                    
                    
                        | 754 | Weavers and related workers | 
                                    
                    
                        | 755 | Knitters | 
                                    
                    
                        | 756 | Bleachers, dyers and textile product finishers | 
                                    
                    
                        | 759 | Spinners, weavers, knitters, dyers and related workers not elsewhere classified | 
                                    
                    
                        | 761 | Tanners and fellmongers | 
                                    
                    
                        | 762 | Pelt dressers | 
                                    
                    
                        | 769 | Tanners, fellmongers and pelt dressers, n.e.c. | 
                                    
                    
                        | 771 | Grain millers and related workers | 
                                    
                    
                        | 772 | Sugar processers and refiners | 
                                    
                    
                        | 773 | Butchers and meat preparers | 
                                    
                    
                        | 774 | Food preservers | 
                                    
                    
                        | 775 | Dairy product processers | 
                                    
                    
                        | 776 | Bakers, pastrycooks and confectionery makers | 
                                    
                    
                        | 777 | Tea, coffee and cocoa preparers | 
                                    
                    
                        | 778 | Brewers, wine and beverage makers | 
                                    
                    
                        | 779 | Food and beverage processers not elsewhere classified | 
                                    
                    
                        | 781 | Tobacco preparers | 
                                    
                    
                        | 782 | Cigar makers | 
                                    
                    
                        | 783 | Cigarette makers | 
                                    
                    
                        | 789 | Tobacco preparers and tobacco product makers not elsewhere classified | 
                                    
                    
                        | 791 | Tailors and dressmakers | 
                                    
                    
                        | 792 | Fur tailors and related workers | 
                                    
                    
                        | 793 | Milliners and hatmakers | 
                                    
                    
                        | 794 | Patternmakers and cutters | 
                                    
                    
                        | 795 | Sewers and embroiderers | 
                                    
                    
                        | 796 | Upholsterers and related workers | 
                                    
                    
                        | 799 | Tailors, dressmakers, sewers, upholsterers and related workers not elsewhere classified | 
                                    
                    
                        | 801 | Shoemakers and shoe repairers | 
                                    
                    
                        | 802 | Shoe cutters, lasters, sewers and related workers | 
                                    
                    
                        | 803 | Leather goods makers | 
                                    
                    
                        | 811 | Cabinetmakers | 
                                    
                    
                        | 812 | Woodworking machine operators | 
                                    
                    
                        | 819 | Cabinetmakers and related woodworkers not elsewhere classified | 
                                    
                    
                        | 820 | Stone cutters and carvers | 
                                    
                    
                        | 831 | Blacksmiths, hammersmiths and forgingpress operators | 
                                    
                    
                        | 832 | Toolmakers, metal patternmakers and metal markers | 
                                    
                    
                        | 833 | Machinetool setteroperators | 
                                    
                    
                        | 834 | Machinetool operators | 
                                    
                    
                        | 835 | Metal grinders, polishers and tool sharpeners | 
                                    
                    
                        | 839 | Blacksmiths, toolmakers and machinetool operators not elsewhere classified | 
                                    
                    
                        | 841 | Machinery fitters and machine assemblers | 
                                    
                    
                        | 842 | Watch, clock and precision instrument makers | 
                                    
                    
                        | 843 | Motor vehicle mechanics | 
                                    
                    
                        | 844 | Aircraft engine mechanics | 
                                    
                    
                        | 849 | Machinery fitters, machine assemblers and precision instrument makers (except electrical) not elsewhere classified | 
                                    
                    
                        | 851 | Electrical fitters | 
                                    
                    
                        | 852 | Electronics fitters | 
                                    
                    
                        | 853 | Electrical and electronics equipment assemblers | 
                                    
                    
                        | 854 | Radio and television repairmen | 
                                    
                    
                        | 855 | Electrical wiremen | 
                                    
                    
                        | 856 | Telephone and telegraph installers | 
                                    
                    
                        | 857 | Electric linemen and cable jointers | 
                                    
                    
                        | 859 | Electrical fitters and related electrical and electronics workers not elsewhere classified | 
                                    
                    
                        | 861 | Broadcasting station operators | 
                                    
                    
                        | 862 | Sound equipment operators and cinema projectionists | 
                                    
                    
                        | 871 | Plumbers and pipe fitters | 
                                    
                    
                        | 872 | Welders and flamecutters | 
                                    
                    
                        | 873 | Sheetmetal workers | 
                                    
                    
                        | 874 | Structural metal preparers and erectors | 
                                    
                    
                        | 879 | Other plumbers, welders, sheet metal and structural metal preparers and erectors | 
                                    
                    
                        | 880 | Jewellery and precious metal workers | 
                                    
                    
                        | 891 | Glass formers, cutters, grinders and finishers | 
                                    
                    
                        | 892 | Potters and related clay and abrasive formers | 
                                    
                    
                        | 893 | Glass and ceramics kilnmen | 
                                    
                    
                        | 894 | Glass engravers and etchers | 
                                    
                    
                        | 895 | Glass and ceramics painters and decorators | 
                                    
                    
                        | 899 | Glass formers, potters and related workers not elsewhere classified | 
                                    
                    
                        | 901 | Rubber and plastics product makers (except tire makers and tire vulcanisers) | 
                                    
                    
                        | 902 | Tire makers and vulcanisers | 
                                    
                    
                        | 910 | Paper and paperboard products makers | 
                                    
                    
                        | 921 | Compositors and typesetters | 
                                    
                    
                        | 922 | Printing pressmen | 
                                    
                    
                        | 923 | Stereotypers and electrotypers | 
                                    
                    
                        | 924 | Printing engravers (except photoengravers) | 
                                    
                    
                        | 925 | Photoengravers | 
                                    
                    
                        | 926 | Bookbinders and related workers | 
                                    
                    
                        | 927 | Photographic darkroom workers | 
                                    
                    
                        | 929 | Printers and related workers not elsewhere classified | 
                                    
                    
                        | 931 | Painters, construction | 
                                    
                    
                        | 939 | Painters not elsewhere classified | 
                                    
                    
                        | 941 | Musical instrument makers and tuners | 
                                    
                    
                        | 942 | Basketry weavers and brush makers | 
                                    
                    
                        | 943 | Nonmetallic mineral product makers | 
                                    
                    
                        | 949 | Other production and related workers | 
                                    
                    
                        | 951 | Bricklayers, stonemasons and tile setters | 
                                    
                    
                        | 952 | Reinforced concreters, cement finishers and terrazzo workers | 
                                    
                    
                        | 953 | Roofers | 
                                    
                    
                        | 954 | Carpenters, joiners and parquetry workers | 
                                    
                    
                        | 955 | Plasterers | 
                                    
                    
                        | 956 | Insulators | 
                                    
                    
                        | 957 | Glaziers | 
                                    
                    
                        | 959 | Construction workers not elsewhere classified | 
                                    
                    
                        | 961 | Power generating machinery operators | 
                                    
                    
                        | 969 | Stationary engine and related equipment operators not elsewhere classified | 
                                    
                    
                        | 971 | Dockers and freight handlers | 
                                    
                    
                        | 972 | Riggers and cable splicers | 
                                    
                    
                        | 973 | Crane and hoist operators | 
                                    
                    
                        | 974 | Earthmoving and related machinery operators | 
                                    
                    
                        | 979 | Material handling equipment operators not elsewhere classified | 
                                    
                    
                        | 981 | Ships' deck ratings, barge crews and boatmen | 
                                    
                    
                        | 982 | Ships' engineroom ratings | 
                                    
                    
                        | 983 | Railway engine drivers and firemen | 
                                    
                    
                        | 984 | Railway brakemen, signalmen and shunters | 
                                    
                    
                        | 985 | Motor vehicle drivers | 
                                    
                    
                        | 986 | Animal and animaldrawn vehicle drivers | 
                                    
                    
                        | 989 | Transport equipment operators not elsewhere classified | 
                                    
                    
                        | 990 | Labourers not elsewhere classified | 
                                    
                    
                        | 995 | Armed forces | 
                                    
                    
                        | 997 | Response suppressed | 
                                    
                    
                        | 998 | Unknown | 
                                    
                    
                        | 999 | NIU (not in universe) | 
                            
            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.