| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 75 | 
                                    
                                    92.6%
                                 | 
| 1 | yes | 6 | 
                                    
                                    7.4%
                                 | 
| 8 | dk | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 49 |