| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 18 | 
                                    
                                    85.7%
                                 | 
| 2 | Some of them | 3 | 
                                    
                                    14.3%
                                 | 
| 3 | All | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 76 |