| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 212 | 
                                    
                                    17.7%
                                 | 
| 1 | Some of them | 485 | 
                                    
                                    40.4%
                                 | 
| 2 | Most of them | 334 | 
                                    
                                    27.8%
                                 | 
| 3 | All of them | 97 | 
                                    
                                    8.1%
                                 | 
| 8 | Refused | 1 | 
                                    
                                    0.1%
                                 | 
| 9 | Don't know/ Haven’t heard | 71 | 
                                    
                                    5.9%
                                 |