| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 491 | 
                                    
                                    5.4%
                                 | 
| 3 | No | 8418 | 
                                    
                                    93.1%
                                 | 
| 8 | DK | 135 | 
                                    
                                    1.5%
                                 | 
| Sysmiss | 48 |