| Value | Category | 
                                    
                    
                        | 10 | Leaders, other | 
                                    
                    
                        | 11 | Leaders, repub. authorities | 
                                    
                    
                        | 12 | Managers of large soc-ec units | 
                                    
                    
                        | 13 | Managers of small soc-ec units | 
                                    
                    
                        | 21 | Engineers, exerts: in real sciences | 
                                    
                    
                        | 22 | Experts: biology, agronomy, pub. health | 
                                    
                    
                        | 23 | Experts: training, educ. | 
                                    
                    
                        | 24 | Experts: high qualification, other | 
                                    
                    
                        | 31 | Experts second. level: physics, engineerng | 
                                    
                    
                        | 32 | Experts sec. level: sciences, pub. health | 
                                    
                    
                        | 33 | Experts sec. level:education | 
                                    
                    
                        | 34 | Secondary personnel: fin., econ, admin., social | 
                                    
                    
                        | 41 | Office clerks | 
                                    
                    
                        | 42 | Service sphere employees | 
                                    
                    
                        | 51 | Workers in indiv. and public protection | 
                                    
                    
                        | 52 | Models, sellers in shops, market | 
                                    
                    
                        | 53 | Workers, linig and commun. household area | 
                                    
                    
                        | 54 | Workers: cinema, TV | 
                                    
                    
                        | 55 | Workers in advertizing | 
                                    
                    
                        | 61 | Qualif. workers: forestry etc with market orient. | 
                                    
                    
                        | 62 | Qualif. workers: forestry, etc. for pers. consump. | 
                                    
                    
                        | 71 | Qualif. workers: extraction, construc. | 
                                    
                    
                        | 72 | Workers: metal proc., egineering | 
                                    
                    
                        | 73 | Workers: precision instr., arts, publ. | 
                                    
                    
                        | 74 | Qualif. workers: other industrial | 
                                    
                    
                        | 75 | Workers: transp., communic. | 
                                    
                    
                        | 76 | Workers: geology | 
                                    
                    
                        | 81 | Machinist: industrial | 
                                    
                    
                        | 82 | Machinist: local machinery | 
                                    
                    
                        | 83 | Mechanics, drivers: mobile equip. | 
                                    
                    
                        | 91 | Non-qualif workers: services | 
                                    
                    
                        | 92 | Non-qualif. workers: forestry, etc | 
                                    
                    
                        | 93 | Non-qualif. workers: industry | 
                                    
                    
                        | 94 | Non-qualif: not sphere specific | 
                            
            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.