| Value | Category | Cases | |
|---|---|---|---|
| -9 | 1 | 
                                    
                                    3.2%
                                 | |
| 1 | 8 | 
                                    
                                    25.8%
                                 | |
| 2 | 10 | 
                                    
                                    32.3%
                                 | |
| 3 | 8 | 
                                    
                                    25.8%
                                 | |
| 4 | 4 | 
                                    
                                    12.9%
                                 | |
| Sysmiss | 184 |