| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Très facile | 95 | 
                                    
                                    7.9%
                                 | 
| 2 | Facile | 230 | 
                                    
                                    19.2%
                                 | 
| 3 | Difficile | 128 | 
                                    
                                    10.7%
                                 | 
| 4 | Très difficile | 47 | 
                                    
                                    3.9%
                                 | 
| 7 | Aucun contact | 700 | 
                                    
                                    58.3%
                                 | 
| 8 | Refuse | 0 | 
                                    
                                    0%
                                 | 
| 9 | Ne sais pas | 0 | 
                                    
                                    0%
                                 |