| Value | Category | Cases | |
|---|---|---|---|
| 1 | 317 | 
                                    
                                    85.2%
                                 | |
| 8 | 21 | 
                                    
                                    5.6%
                                 | |
| 9 | 34 | 
                                    
                                    9.1%
                                 | |
| Sysmiss | 424 |