| Value | Category | Cases | |
|---|---|---|---|
| 0 | Non | 7690 | 
                                    
                                    69.1%
                                 | 
| 1 | Oui | 1851 | 
                                    
                                    16.6%
                                 | 
| 9 | Manquant | 1588 | 
                                    
                                    14.3%
                                 | 
| Sysmiss | 10325 |