| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1836 | 
                                    
                                    19.4%
                                 | |
| 3 | 7622 | 
                                    
                                    80.4%
                                 | |
| 8 | 26 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 979 |