| Value | Category | Cases | |
|---|---|---|---|
| -9 | 2 | 
                                    
                                    1%
                                 | |
| 1 | 136 | 
                                    
                                    69.4%
                                 | |
| 2 | 32 | 
                                    
                                    16.3%
                                 | |
| 3 | 24 | 
                                    
                                    12.2%
                                 | |
| 6 | 2 | 
                                    
                                    1%
                                 | |
| Sysmiss | 19 |