| Value | Category | 
                                    
                    
                        | 0 | Growing of cereals and other crops | 
                                    
                    
                        | 1 | Growing of vegetables | 
                                    
                    
                        | 2 | Growing of fruit, nuts,... | 
                                    
                    
                        | 3 | Farming of cattle, sheep,... | 
                                    
                    
                        | 4 | Other animal farming... | 
                                    
                    
                        | 5 | Growing of crops combined... | 
                                    
                    
                        | 6 | Agricultural and animal... | 
                                    
                    
                        | 7 | Hunting, trapping and game... | 
                                    
                    
                        | 8 | Forestry, logging... | 
                                    
                    
                        | 9 | Fishing, operation... | 
                                    
                    
                        | 10 | Mining of coal and lignite... | 
                                    
                    
                        | 11 | Extraction of crude... | 
                                    
                    
                        | 12 | Mining of uranium... | 
                                    
                    
                        | 13 | Mining of metal ores | 
                                    
                    
                        | 14 | Other mining and quarrying | 
                                    
                    
                        | 15 | Manufacture of food... | 
                                    
                    
                        | 16 | Manufacture of tobacco products | 
                                    
                    
                        | 17 | Manufacture of textiles | 
                                    
                    
                        | 18 | Manufacture of wearing... | 
                                    
                    
                        | 19 | Tanning and dressing of leather... | 
                                    
                    
                        | 20 | Manufacture of wood and... | 
                                    
                    
                        | 21 | Manufacture of paper and paper products | 
                                    
                    
                        | 22 | Publishing, printing... | 
                                    
                    
                        | 23 | Manufacture of coke... | 
                                    
                    
                        | 24 | Manufacture of chemicals... | 
                                    
                    
                        | 25 | Manufacture of rubber... | 
                                    
                    
                        | 26 | Manufacture of other non-metallic... | 
                                    
                    
                        | 27 | Manufacture of basic metals | 
                                    
                    
                        | 28 | Manufacture of fabricated metal... | 
                                    
                    
                        | 29 | Manufacture of machinery... | 
                                    
                    
                        | 30 | Manufacture of office... | 
                                    
                    
                        | 31 | Manufacture of electrical... | 
                                    
                    
                        | 32 | Manufacture of radio... | 
                                    
                    
                        | 33 | Manufacture of medical... | 
                                    
                    
                        | 34 | Manufacture of motor... | 
                                    
                    
                        | 35 | Manufacture of other... | 
                                    
                    
                        | 36 | Manufacture of furniture... | 
                                    
                    
                        | 37 | Recycling | 
                                    
                    
                        | 40 | Electricity, gas, steam... | 
                                    
                    
                        | 41 | Collection, purification... | 
                                    
                    
                        | 45 | Construction | 
                                    
                    
                        | 50 | Sale, maintenance... | 
                                    
                    
                        | 51 | Wholesale trade and... | 
                                    
                    
                        | 52 | Retail trade, except of... | 
                                    
                    
                        | 55 | Hotels and restaurants... | 
                                    
                    
                        | 60 | Land transport; transport... | 
                                    
                    
                        | 61 | Water transport... | 
                                    
                    
                        | 62 | Air transport... | 
                                    
                    
                        | 63 | Supporting and auxiliary... | 
                                    
                    
                        | 64 | Post and telecommun... | 
                                    
                    
                        | 65 | Financial intermediation... | 
                                    
                    
                        | 66 | Insurance and pension... | 
                                    
                    
                        | 67 | Activities auxiliary to... | 
                                    
                    
                        | 70 | Real estate activities... | 
                                    
                    
                        | 71 | Renting of machinery... | 
                                    
                    
                        | 72 | Computer and related... | 
                                    
                    
                        | 73 | Research and development... | 
                                    
                    
                        | 74 | Other business activities... | 
                                    
                    
                        | 75 | Public administration and... | 
                                    
                    
                        | 80 | Education | 
                                    
                    
                        | 85 | Health and social work | 
                                    
                    
                        | 88 | None | 
                                    
                    
                        | 90 | Sewage and refuse... | 
                                    
                    
                        | 91 | Activities and member... | 
                                    
                    
                        | 92 | Recreational, cultural... | 
                                    
                    
                        | 93 | Other service activities | 
                                    
                    
                        | 95 | Private households with... | 
                                    
                    
                        | 96 | Extra-territorial org... | 
                                    
                    
                        | 97 | Other industry not... | 
                                    
                    
                        | 98 | Respondent don't know | 
                                    
                    
                        | 99 | Missing | 
                                    
                    
                        | Sysmiss |  | 
                            
            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.