| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 129 | 
                                    
                                    10.8%
                                 | 
| 1 | Some of them | 561 | 
                                    
                                    46.8%
                                 | 
| 2 | Most of them | 295 | 
                                    
                                    24.6%
                                 | 
| 3 | All of them | 80 | 
                                    
                                    6.7%
                                 | 
| 8 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | Don't know/ Haven’t heard | 134 | 
                                    
                                    11.2%
                                 |