| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4- | 3 | 
                                                                 
                                    
                                    50%
                                 
                                                             | 
                                                        
                    
| 1 | 164- | 3 | 
                                                                 
                                    
                                    50%
                                 
                                                             | 
                                                        
                    
| 2 | 321- | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 6 |