| Value | Category | Cases | |
|---|---|---|---|
| 11 | 28 | 
                                    
                                    11.7%
                                 | |
| 12 | 33 | 
                                    
                                    13.8%
                                 | |
| 13 | 28 | 
                                    
                                    11.7%
                                 | |
| 14 | 53 | 
                                    
                                    22.2%
                                 | |
| 15 | 26 | 
                                    
                                    10.9%
                                 | |
| 16 | 31 | 
                                    
                                    13%
                                 | |
| 17 | 28 | 
                                    
                                    11.7%
                                 | |
| 18 | 7 | 
                                    
                                    2.9%
                                 | |
| 19 | 4 | 
                                    
                                    1.7%
                                 | |
| 20 | 1 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 12 |