| Value | Category | Cases | |
|---|---|---|---|
| -9 | 4 | 
                                    
                                    18.2%
                                 | |
| 1 | 5 | 
                                    
                                    22.7%
                                 | |
| 3 | 13 | 
                                    
                                    59.1%
                                 | |
| Sysmiss | 193 |