| Value | Category | Cases | |
|---|---|---|---|
| -9 | 5 | 
                                    
                                    2.3%
                                 | |
| 1 | 180 | 
                                    
                                    83.7%
                                 | |
| 2 | 12 | 
                                    
                                    5.6%
                                 | |
| 3 | 18 | 
                                    
                                    8.4%
                                 |