| Value | Category | Cases | |
|---|---|---|---|
| 1 | the event of the revolution or because of partcipating in politics | 9 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 2 | Accident | 96 | 
                                                                 
                                    
                                    3.9%
                                 
                                                             | 
                                                        
                    
| 3 | Hereditary or congenital | 2379 | 
                                                                 
                                    
                                    95.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8432 |