| Value | Category | Cases | |
|---|---|---|---|
| -4 | 24 | 
                                    
                                    3.2%
                                 | |
| 0 | 25 | 
                                    
                                    3.4%
                                 | |
| 1 | 6 | 
                                    
                                    0.8%
                                 | |
| 2 | 688 | 
                                    
                                    92.6%
                                 |