| Value | Category | Cases | |
|---|---|---|---|
| 7 | 1 | 
                                    
                                    0.1%
                                 | |
| 8 | 26 | 
                                    
                                    1.8%
                                 | |
| 9 | 61 | 
                                    
                                    4.3%
                                 | |
| 10 | 120 | 
                                    
                                    8.5%
                                 | |
| 11 | 179 | 
                                    
                                    12.6%
                                 | |
| 12 | 136 | 
                                    
                                    9.6%
                                 | |
| 13 | 181 | 
                                    
                                    12.8%
                                 | |
| 14 | 211 | 
                                    
                                    14.9%
                                 | |
| 15 | 183 | 
                                    
                                    12.9%
                                 | |
| 16 | 155 | 
                                    
                                    10.9%
                                 | |
| 17 | 99 | 
                                    
                                    7%
                                 | |
| 18 | 44 | 
                                    
                                    3.1%
                                 | |
| 19 | 13 | 
                                    
                                    0.9%
                                 | |
| 20 | 6 | 
                                    
                                    0.4%
                                 | |
| 21 | 1 | 
                                    
                                    0.1%
                                 |