| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Très facile | 69 | 
                                    
                                    5.8%
                                 | 
| 2 | Facile | 140 | 
                                    
                                    11.7%
                                 | 
| 3 | Difficile | 83 | 
                                    
                                    6.9%
                                 | 
| 4 | Très difficile | 86 | 
                                    
                                    7.2%
                                 | 
| 7 | Aucun contact | 822 | 
                                    
                                    68.5%
                                 | 
| 8 | Refuse | 0 | 
                                    
                                    0%
                                 | 
| 9 | Ne sais pas | 0 | 
                                    
                                    0%
                                 |