| Value | Category | Cases | |
|---|---|---|---|
| 1 | 129 | 
                                    
                                    3.1%
                                 | |
| 3 | 3952 | 
                                    
                                    96.4%
                                 | |
| 8 | 18 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 6751 |