| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 530 | 
                                    
                                    44.2%
                                 | 
| 1 | Some of them | 462 | 
                                    
                                    38.5%
                                 | 
| 2 | Most of them | 97 | 
                                    
                                    8.1%
                                 | 
| 3 | All of them | 45 | 
                                    
                                    3.8%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know/ Haven’t heard | 66 | 
                                    
                                    5.5%
                                 |