| Value | Category | Cases | |
|---|---|---|---|
| 0 | 97 | 
                                                                 
                                    
                                    88.2%
                                 
                                                             | 
                                                        
                    |
| 1 | 13 | 
                                                                 
                                    
                                    11.8%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 28 |