| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1261 | 
                                    
                                    7.6%
                                 | |
| 3 | 5471 | 
                                    
                                    32.9%
                                 | |
| 4 | 9648 | 
                                    
                                    58%
                                 | |
| 6 | 267 | 
                                    
                                    1.6%
                                 | |
| Sysmiss | 29695 |