| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 255 | 
                                    
                                    11.8%
                                 | 
| 2 | NO | 1556 | 
                                    
                                    72.3%
                                 | 
| 8 | DK | 205 | 
                                    
                                    9.5%
                                 | 
| Sysmiss | 137 | 
                                    
                                    6.4%
                                 |