| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 342 | 
                                    
                                    15.9%
                                 | 
| 2 | NO | 1235 | 
                                    
                                    57.4%
                                 | 
| 8 | DK | 439 | 
                                    
                                    20.4%
                                 | 
| Sysmiss | 137 | 
                                    
                                    6.4%
                                 |