| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 1 | Shareholding company with shares traded on the stock market | 13 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    
| 2 | Shareholding company with non-traded shares or shares traded privately | 56 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 3 | Sole proprietorship | 140 | 
                                                                 
                                    
                                    23.6%
                                 
                                                             | 
                                                        
                    
| 4 | Partnership | 112 | 
                                                                 
                                    
                                    18.9%
                                 
                                                             | 
                                                        
                    
| 5 | Limited partnership | 18 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    
| 6 | Other | 252 | 
                                                                 
                                    
                                    42.6%
                                 
                                                             |