| Value | Category | Cases | |
|---|---|---|---|
| 0 | 53 | 
                                                                 
                                    
                                    65.4%
                                 
                                                             | 
                                                        
                    |
| 1 | 28 | 
                                                                 
                                    
                                    34.6%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 15 |