| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 157 | 
                                    
                                    10%
                                 | 
| 2 | NO | 411 | 
                                    
                                    26.3%
                                 | 
| 8 | DK | 1 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 995 | 
                                    
                                    63.6%
                                 |