| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 419 | 
                                    
                                    9.5%
                                 | 
| 3 | No | 3932 | 
                                    
                                    89.6%
                                 | 
| 8 | DK | 37 | 
                                    
                                    0.8%
                                 | 
| Sysmiss | 621 |