| Value | Category | Cases | |
|---|---|---|---|
| -9 | 1 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 1 | 18 | 
                                                                 
                                    
                                    72%
                                 
                                                             | 
                                                        
                    |
| 2 | 6 | 
                                                                 
                                    
                                    24%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 184 |