| Value | Category | Cases | |
|---|---|---|---|
| -1 | Weiss nicht | 13 | 
                                    
                                    1.1%
                                 | 
| 1 | Ja | 116 | 
                                    
                                    9.7%
                                 | 
| 2 | Nein | 875 | 
                                    
                                    73.4%
                                 | 
| Sysmiss | 188 | 
                                    
                                    15.8%
                                 |