| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 1 | Shareholding company with shares traded on the stock market | 1 | 
                                    
                                    0.7%
                                 | 
| 2 | Shareholding company with non-traded shares or shares traded privately | 3 | 
                                    
                                    2%
                                 | 
| 3 | Sole proprietorship | 138 | 
                                    
                                    92%
                                 | 
| 4 | Partnership | 4 | 
                                    
                                    2.7%
                                 | 
| 5 | Limited partnership | 4 | 
                                    
                                    2.7%
                                 | 
| 6 | Other | 0 | 
                                    
                                    0%
                                 |