| Value | Category | Cases | |
|---|---|---|---|
| -9 | 6 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    |
| -7 | 20 | 
                                                                 
                                    
                                    9.6%
                                 
                                                             | 
                                                        
                    |
| 1 | 28 | 
                                                                 
                                    
                                    13.4%
                                 
                                                             | 
                                                        
                    |
| 2 | 51 | 
                                                                 
                                    
                                    24.4%
                                 
                                                             | 
                                                        
                    |
| 3 | 59 | 
                                                                 
                                    
                                    28.2%
                                 
                                                             | 
                                                        
                    |
| 4 | 45 | 
                                                                 
                                    
                                    21.5%
                                 
                                                             |