| Value | Category | Cases | |
|---|---|---|---|
| -9 | 10 | 
                                    
                                    13.5%
                                 | |
| 0 | 10 | 
                                    
                                    13.5%
                                 | |
| 1 | 5 | 
                                    
                                    6.8%
                                 | |
| 2 | 36 | 
                                    
                                    48.6%
                                 | |
| 4 | 8 | 
                                    
                                    10.8%
                                 | |
| 5 | 1 | 
                                    
                                    1.4%
                                 | |
| 6 | 1 | 
                                    
                                    1.4%
                                 | |
| 9 | 1 | 
                                    
                                    1.4%
                                 | |
| 10 | 1 | 
                                    
                                    1.4%
                                 | |
| 38 | 1 | 
                                    
                                    1.4%
                                 | |
| Sysmiss | 141 |