| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | 16865 | 
                                    
                                    100%
                                 | |
| 20 | 2 | 
                                    
                                    0%
                                 | |
| 30 | 3 | 
                                    
                                    0%
                                 | |
| Sysmiss | 45549 |