| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 1158 | 
                                    
                                    21.1%
                                 | 
| 2 | NO | 300 | 
                                    
                                    5.5%
                                 | 
| 8 | DK | 20 | 
                                    
                                    0.4%
                                 | 
| Sysmiss | 4001 | 
                                    
                                    73%
                                 |