| Value | Category | Cases | |
|---|---|---|---|
| 1 | Specify | 8663 | 
                                    
                                    57.9%
                                 | 
| 3 | Does not want to provide the information | 566 | 
                                    
                                    3.8%
                                 | 
| 8 | DK | 5736 | 
                                    
                                    38.3%
                                 | 
| Sysmiss | 2 |