| Value | Category | Cases | |
|---|---|---|---|
| 1 | Elevé | 90 | 
                                    
                                    9%
                                 | 
| 2 | Moyen supérieur | 230 | 
                                    
                                    23%
                                 | 
| 3 | Moyen inférieur | 490 | 
                                    
                                    49%
                                 | 
| 4 | Bas | 168 | 
                                    
                                    16.8%
                                 | 
| 9 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 23 | 
                                    
                                    2.3%
                                 |