| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 270 | 
                                    
                                    11.3%
                                 | 
| 1 | Some of them | 1218 | 
                                    
                                    50.8%
                                 | 
| 2 | Most of them | 451 | 
                                    
                                    18.8%
                                 | 
| 3 | All of them | 188 | 
                                    
                                    7.8%
                                 | 
| 8 | Refused | 4 | 
                                    
                                    0.2%
                                 | 
| 9 | Don't know/ Haven’t heard | 269 | 
                                    
                                    11.2%
                                 |