| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 67 | 
                                    
                                    2.8%
                                 | 
| 1 | Some of them | 785 | 
                                    
                                    32.7%
                                 | 
| 2 | Most of them | 769 | 
                                    
                                    32%
                                 | 
| 3 | All of them | 637 | 
                                    
                                    26.5%
                                 | 
| 8 | Refused | 3 | 
                                    
                                    0.1%
                                 | 
| 9 | Don't know/ Haven’t heard | 139 | 
                                    
                                    5.8%
                                 |