| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 274 | 
                                    
                                    2.7%
                                 | 
| 2 | NO | 13 | 
                                    
                                    0.1%
                                 | 
| 8 | DK | 7 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 9862 | 
                                    
                                    97.1%
                                 |