| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 7539 | 
                                    
                                    89.9%
                                 | 
| 3 | No | 0 | 
                                    
                                    0%
                                 | 
| 8 | DK | 846 | 
                                    
                                    10.1%
                                 | 
| Sysmiss | 707 |