| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 21 | 
                                    
                                    43.8%
                                 | 
| 3 | No | 0 | 
                                    
                                    0%
                                 | 
| 8 | DK | 27 | 
                                    
                                    56.3%
                                 | 
| Sysmiss | 9044 |