| Value | Category | Cases | |
|---|---|---|---|
| 0 | Non | 7070 | 
                                    
                                    63.5%
                                 | 
| 1 | Oui | 2509 | 
                                    
                                    22.5%
                                 | 
| 9 | Manquant | 1550 | 
                                    
                                    13.9%
                                 | 
| Sysmiss | 10325 |