| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| -8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| 1 | Yes | 9 | 
                                    
                                    30%
                                 | 
| 2 | No | 21 | 
                                    
                                    70%
                                 | 
| Sysmiss | 925 |