| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1152 | 
                                    
                                    85.8%
                                 | 
| 1 | Yes | 188 | 
                                    
                                    14%
                                 | 
| 8 | Don't know | 2 | 
                                    
                                    0.1%
                                 |