| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 101 | 
                                    
                                    27.2%
                                 | 
| 1 | Yes | 212 | 
                                    
                                    57.1%
                                 | 
| 9 | Don't know | 58 | 
                                    
                                    15.6%
                                 |