| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 284 | 
                                    
                                    11.8%
                                 | 
| 1 | Some of them | 1271 | 
                                    
                                    53%
                                 | 
| 2 | Most of them | 439 | 
                                    
                                    18.3%
                                 | 
| 3 | All of them | 219 | 
                                    
                                    9.1%
                                 | 
| 8 | Refused | 2 | 
                                    
                                    0.1%
                                 | 
| 9 | Don't know/ Haven’t heard | 185 | 
                                    
                                    7.7%
                                 |