| Value | Category | Cases | |
|---|---|---|---|
| -9 | 24 | 
                                    
                                    11.2%
                                 | |
| -7 | 22 | 
                                    
                                    10.2%
                                 | |
| -6 | 1 | 
                                    
                                    0.5%
                                 | |
| 1 | 58 | 
                                    
                                    27%
                                 | |
| 2 | 110 | 
                                    
                                    51.2%
                                 |