| Value | Category | Cases | |
|---|---|---|---|
| 1 | Specify | 689 | 
                                    
                                    4.6%
                                 | 
| 3 | Does not want to provide the information | 2721 | 
                                    
                                    18.2%
                                 | 
| 8 | DK | 11555 | 
                                    
                                    77.2%
                                 | 
| Sysmiss | 2 |