| Value | Category | Cases | |
|---|---|---|---|
| 0 | 574 | 
                                                                 
                                    
                                    91%
                                 
                                                             | 
                                                        
                    |
| 1 | 57 | 
                                                                 
                                    
                                    9%
                                 
                                                             | 
                                                        
                    |
| -99 | 2 | ||
| Sysmiss | 24 |