| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 618 | 
                                    
                                    33.9%
                                 | 
| 1 | Yes | 1203 | 
                                    
                                    65.9%
                                 | 
| 99 | Don't know | 4 | 
                                    
                                    0.2%
                                 |