| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 5 | 
                                    
                                    22.7%
                                 | 
| 2 | no | 16 | 
                                    
                                    72.7%
                                 | 
| 8 | dk | 1 | 
                                    
                                    4.5%
                                 | 
| Sysmiss | 15329 |