| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1658 | 
                                    
                                    11.5%
                                 | 
| 3 | No | 12750 | 
                                    
                                    88.4%
                                 | 
| 8 | DK | 22 | 
                                    
                                    0.2%
                                 | 
| Sysmiss | 10497 |