| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 865 | 
                                    
                                    73.9%
                                 | 
| 1 | Yes | 267 | 
                                    
                                    22.8%
                                 | 
| 888 | 39 | 
                                    
                                    3.3%
                                 | |
| Sysmiss | 3382 |