| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 262 | 
                                    
                                    12%
                                 | 
| 2 | no | 1910 | 
                                    
                                    87.5%
                                 | 
| 8 | dk | 11 | 
                                    
                                    0.5%
                                 | 
| Sysmiss | 13168 |