| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 | 
                                    
                                    9.6%
                                 | |
| 1 | 9 | 
                                    
                                    7.2%
                                 | |
| 2 | 38 | 
                                    
                                    30.4%
                                 | |
| 3 | 21 | 
                                    
                                    16.8%
                                 | |
| 4 | 18 | 
                                    
                                    14.4%
                                 | |
| 5 | 17 | 
                                    
                                    13.6%
                                 | |
| 6 | 3 | 
                                    
                                    2.4%
                                 | |
| 7 | 2 | 
                                    
                                    1.6%
                                 | |
| 8 | 2 | 
                                    
                                    1.6%
                                 | |
| 10 | 1 | 
                                    
                                    0.8%
                                 | |
| 12 | 2 | 
                                    
                                    1.6%
                                 |