| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 367 | 
                                    
                                    30.6%
                                 | 
| 1 | Some of them | 539 | 
                                    
                                    44.9%
                                 | 
| 2 | Most of them | 160 | 
                                    
                                    13.3%
                                 | 
| 3 | All of them | 65 | 
                                    
                                    5.4%
                                 | 
| 8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 9 | Don't know/ Haven’t heard | 69 | 
                                    
                                    5.8%
                                 |