| Value | Category | Cases | |
|---|---|---|---|
| 1 | 419 | 
                                    
                                    10.8%
                                 | |
| 3 | 3457 | 
                                    
                                    88.9%
                                 | |
| 8 | 13 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 6623 |