| Value | Category | Cases | |
|---|---|---|---|
| -6 | 732 | 
                                    
                                    57.2%
                                 | |
| 1 | 73 | 
                                    
                                    5.7%
                                 | |
| 2 | 146 | 
                                    
                                    11.4%
                                 | |
| 3 | 148 | 
                                    
                                    11.6%
                                 | |
| 4 | 113 | 
                                    
                                    8.8%
                                 | |
| 5 | 58 | 
                                    
                                    4.5%
                                 | |
| 6 | 9 | 
                                    
                                    0.7%
                                 | |
| Sysmiss | 221 |