| Value | Category | Cases | |
|---|---|---|---|
| -4 | 11 | 
                                    
                                    1.5%
                                 | |
| 0 | 66 | 
                                    
                                    8.9%
                                 | |
| 1 | 11 | 
                                    
                                    1.5%
                                 | |
| 2 | 655 | 
                                    
                                    88.2%
                                 |