| Value | Category | Cases | |
|---|---|---|---|
| 1 | Elevé | 75 | 
                                    
                                    7.8%
                                 | 
| 2 | Moyen supérieur | 246 | 
                                    
                                    25.6%
                                 | 
| 3 | Moyen inférieur | 512 | 
                                    
                                    53.3%
                                 | 
| 4 | Bas | 114 | 
                                    
                                    11.9%
                                 | 
| 9 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 14 | 
                                    
                                    1.5%
                                 |