| Value | Category | Cases | |
|---|---|---|---|
| 0 | 483 | 
                                                                 
                                    
                                    81.7%
                                 
                                                             | 
                                                        
                    |
| 1 | 108 | 
                                                                 
                                    
                                    18.3%
                                 
                                                             | 
                                                        
                    |
| -99 | 15 | ||
| Sysmiss | 51 |