| Value | Category | Cases | |
|---|---|---|---|
| 1 | 520 | 
                                    
                                    58.6%
                                 | |
| 8 | 139 | 
                                    
                                    15.7%
                                 | |
| 9 | 229 | 
                                    
                                    25.8%
                                 | |
| Sysmiss | 492 |