| Value | Category | Cases | |
|---|---|---|---|
| 0 | 8 | 
                                                                 
                                    
                                    32%
                                 
                                                             | 
                                                        
                    |
| 1 | 12 | 
                                                                 
                                    
                                    48%
                                 
                                                             | 
                                                        
                    |
| 2 | 1 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 4 | 3 | 
                                                                 
                                    
                                    12%
                                 
                                                             | 
                                                        
                    |
| 20 | 1 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 14 |