| Value | Category | Cases | |
|---|---|---|---|
| 1 | Specify | 576 | 
                                    
                                    3.8%
                                 | 
| 3 | Does not want to provide the information | 750 | 
                                    
                                    5%
                                 | 
| 8 | DK | 13640 | 
                                    
                                    91.1%
                                 | 
| Sysmiss | 1 |