| Value | Category | Cases | |
|---|---|---|---|
| 0 | 284 | 
                                                                 
                                    
                                    98.6%
                                 
                                                             | 
                                                        
                    |
| 1 | 4 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 87 |