| Value | Category | Cases | |
|---|---|---|---|
| 7 | 49 | 
                                    
                                    5.1%
                                 | |
| 8 | 232 | 
                                    
                                    24.3%
                                 | |
| 9 | 238 | 
                                    
                                    24.9%
                                 | |
| 10 | 145 | 
                                    
                                    15.2%
                                 | |
| 11 | 95 | 
                                    
                                    9.9%
                                 | |
| 12 | 71 | 
                                    
                                    7.4%
                                 | |
| 13 | 58 | 
                                    
                                    6.1%
                                 | |
| 14 | 31 | 
                                    
                                    3.2%
                                 | |
| 15 | 19 | 
                                    
                                    2%
                                 | |
| 16 | 12 | 
                                    
                                    1.3%
                                 | |
| 17 | 2 | 
                                    
                                    0.2%
                                 | |
| 18 | 3 | 
                                    
                                    0.3%
                                 |