| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 328 | 
                                    
                                    7.5%
                                 | 
| 3 | No | 3961 | 
                                    
                                    90.7%
                                 | 
| 8 | DK | 76 | 
                                    
                                    1.7%
                                 | 
| Sysmiss | 644 |