| Value | Category | Cases | |
|---|---|---|---|
| 0 | 160 | 
                                                                 
                                    
                                    98.8%
                                 
                                                             | 
                                                        
                    |
| 1 | 2 | 
                                                                 
                                    
                                    1.2%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1594 |