| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 89 | 
                                    
                                    9.7%
                                 | 
| 2 | No | 618 | 
                                    
                                    67.5%
                                 | 
| 9 | Don't know | 209 | 
                                    
                                    22.8%
                                 |