| Value | Category | Cases | |
|---|---|---|---|
| 0 | 830 | 
                                    
                                    51.6%
                                 | |
| 1 | 103 | 
                                    
                                    6.4%
                                 | |
| 2 | 424 | 
                                    
                                    26.4%
                                 | |
| 3 | 250 | 
                                    
                                    15.6%
                                 | |
| Sysmiss | 7868 |