| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 171 | 
                                    
                                    4.3%
                                 | 
| 3 | No | 3792 | 
                                    
                                    95%
                                 | 
| 8 | DK | 29 | 
                                    
                                    0.7%
                                 | 
| Sysmiss | 8 |