| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1008 | 
                                    
                                    10.6%
                                 | |
| 3 | 8446 | 
                                    
                                    89%
                                 | |
| 8 | 31 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 978 |