| Value | Category | Cases | |
|---|---|---|---|
| 0 | 930 | 
                                                                 
                                    
                                    79%
                                 
                                                             | 
                                                        
                    |
| 1 | 247 | 
                                                                 
                                    
                                    21%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 2 |