| Value | Category | Cases | |
|---|---|---|---|
| 0 | 377 | 
                            
                             
                                
                                97.2%
                                                             
                            
                         | 
                        
                    |
| 1 | 11 | 
                            
                             
                                
                                2.8%
                                                             
                            
                         | 
                        
                    |
| Sysmiss | 1452 |