| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 679 | 
                                    
                                    31.5%
                                 | 
| 2 | NO | 267 | 
                                    
                                    12.4%
                                 | 
| 8 | DK | 620 | 
                                    
                                    28.8%
                                 | 
| Sysmiss | 587 | 
                                    
                                    27.3%
                                 |