| Value | Category | Cases | |
|---|---|---|---|
| 1 | 20 | 
                                    
                                    6.9%
                                 | |
| 3 | 251 | 
                                    
                                    86.9%
                                 | |
| 8 | 18 | 
                                    
                                    6.2%
                                 | |
| Sysmiss | 1556 |