| Value | Category | Cases | |
|---|---|---|---|
| -88 | Refused to answer | 20 | 
                                    
                                    58.8%
                                 | 
| 0 | No | 11 | 
                                    
                                    32.4%
                                 | 
| 1 | Yes | 3 | 
                                    
                                    8.8%
                                 | 
| Sysmiss | 1432 |