| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 3498 | 
                                    
                                    73.4%
                                 | 
| 3 | No | 1198 | 
                                    
                                    25.1%
                                 | 
| 8 | DK | 68 | 
                                    
                                    1.4%
                                 | 
| Sysmiss | 245 |