| Value | Category | Cases | |
|---|---|---|---|
| -9 | 616 | 
                                
                                11.4%
                             | |
| 0 | 3489 | 
                                
                                64.7%
                             | |
| 1 | 7 | 
                                
                                0.1%
                             | |
| 5 | 311 | 
                                
                                5.8%
                             | |
| 9 | 971 | 
                                
                                18%
                             |