| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 63 | 
                                    
                                    78.8%
                                 | 
| 2 | no | 16 | 
                                    
                                    20%
                                 | 
| 8 | dk | 1 | 
                                    
                                    1.3%
                                 | 
| Sysmiss | 15271 |