| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 135 | 
                                    
                                    5.6%
                                 | 
| 1 | Some of them | 1255 | 
                                    
                                    52.3%
                                 | 
| 2 | Most of them | 518 | 
                                    
                                    21.6%
                                 | 
| 3 | All of them | 229 | 
                                    
                                    9.5%
                                 | 
| 8 | Refused | 5 | 
                                    
                                    0.2%
                                 | 
| 9 | Don't know/ Haven’t heard | 258 | 
                                    
                                    10.8%
                                 |