| Value | Category | Cases | |
|---|---|---|---|
| -9 | 33 | 
                                    
                                    15.3%
                                 | |
| 1 | 18 | 
                                    
                                    8.4%
                                 | |
| 2 | 164 | 
                                    
                                    76.3%
                                 |