| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 789 | 
                                    
                                    73.3%
                                 | 
| 2 | no | 259 | 
                                    
                                    24%
                                 | 
| 8 | dk | 29 | 
                                    
                                    2.7%
                                 | 
| Sysmiss | 14274 |