| Value | Category | Cases | |
|---|---|---|---|
| 1 | 50 | 
                                    
                                    8.1%
                                 | |
| 3 | 549 | 
                                    
                                    89%
                                 | |
| 9 | 18 | 
                                    
                                    2.9%
                                 | |
| Sysmiss | 328 |