| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1567 | 
                                    
                                    18.9%
                                 | |
| 3 | 6704 | 
                                    
                                    80.9%
                                 | |
| 8 | 17 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 2562 |