| Value | Category | Cases | |
|---|---|---|---|
| 0 | 981 | 
                            
                             
                                
                                70%
                                                             
                            
                         | 
                        
                    |
| 1 | 421 | 
                            
                             
                                
                                30%
                                                             
                            
                         | 
                        
                    |
| Sysmiss | 112 |