| Value | Category | Cases | |
|---|---|---|---|
| 1 | Non | 953 | 
                                    
                                    90.5%
                                 | 
| 2 | Oui | 44 | 
                                    
                                    4.2%
                                 | 
| 3 | 2 | 42 | 
                                    
                                    4%
                                 | 
| 4 | 3 | 14 | 
                                    
                                    1.3%
                                 | 
| Sysmiss | 238 |