| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 1 | Very Easy | 16 | 
                                    
                                    1.3%
                                 | 
| 2 | Easy | 29 | 
                                    
                                    2.4%
                                 | 
| 3 | Difficult | 17 | 
                                    
                                    1.4%
                                 | 
| 4 | Very Difficult | 10 | 
                                    
                                    0.8%
                                 | 
| 7 | No contact | 1127 | 
                                    
                                    93.9%
                                 | 
| 9 | Don't Know | 1 | 
                                    
                                    0.1%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 |