| Value | Category | Cases | |
|---|---|---|---|
| 1 | Written contract | 2282 | 
                                                                 
                                    
                                    16.3%
                                 
                                                             | 
                                                        
                    
| 2 | Oral agreement | 11740 | 
                                                                 
                                    
                                    83.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 56402 |