| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Very easy | 53 | 
                                    
                                    4.4%
                                 | 
| 2 | Easy | 122 | 
                                    
                                    10.2%
                                 | 
| 3 | Difficult | 66 | 
                                    
                                    5.5%
                                 | 
| 4 | Very Difficult | 33 | 
                                    
                                    2.8%
                                 | 
| 7 | No contact | 926 | 
                                    
                                    77.2%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know | 0 | 
                                    
                                    0%
                                 |