| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 56 | 
                                    
                                    4.7%
                                 | 
| 1 | Some of them | 442 | 
                                    
                                    36.8%
                                 | 
| 2 | Most of them | 306 | 
                                    
                                    25.5%
                                 | 
| 3 | All of them | 189 | 
                                    
                                    15.8%
                                 | 
| 8 | Refused | 8 | 
                                    
                                    0.7%
                                 | 
| 9 | Don't know/ Haven’t heard | 199 | 
                                    
                                    16.6%
                                 |