| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | None | 728 | 
                                    
                                    60.7%
                                 | 
| 1 | Some of them | 341 | 
                                    
                                    28.4%
                                 | 
| 2 | Most of them | 46 | 
                                    
                                    3.8%
                                 | 
| 3 | All of them | 10 | 
                                    
                                    0.8%
                                 | 
| 8 | Refused | 2 | 
                                    
                                    0.2%
                                 | 
| 9 | Don't know/ Haven’t heard | 73 | 
                                    
                                    6.1%
                                 |