| Value | Category | Cases | |
|---|---|---|---|
| 1 | Elevé | 85 | 
                                    
                                    8.5%
                                 | 
| 2 | Moyen supérieur | 287 | 
                                    
                                    28.8%
                                 | 
| 3 | Moyen inférieur | 489 | 
                                    
                                    49%
                                 | 
| 4 | Bas | 126 | 
                                    
                                    12.6%
                                 | 
| 9 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 11 | 
                                    
                                    1.1%
                                 |