| Value | Category | Cases | |
|---|---|---|---|
| 1 | Elevé | 69 | 
                                    
                                    6.8%
                                 | 
| 2 | Moyen supérieur | 271 | 
                                    
                                    26.8%
                                 | 
| 3 | Moyen inférieur | 536 | 
                                    
                                    52.9%
                                 | 
| 4 | Bas | 114 | 
                                    
                                    11.3%
                                 | 
| 9 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 23 | 
                                    
                                    2.3%
                                 |