| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2 | 
                                    
                                    4.1%
                                 | 
| -8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 1 | Yes | 24 | 
                                    
                                    49%
                                 | 
| 2 | No | 23 | 
                                    
                                    46.9%
                                 | 
| Sysmiss | 906 |