| Value | Category | 
                                    
                    
                        | 1 | individual project | 
                                    
                    
                        | 2 | Company of individuals | 
                                    
                    
                        | 3 | Joint Stock company | 
                                    
                    
                        | 4 | limited liability Company | 
                                    
                    
                        | 5 | Illegal | 
                                    
                    
                        | 8 | don't know | 
                            
            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.