| Value | Category | Cases | |
|---|---|---|---|
| 0 | 241 | 
                                    
                                    7.5%
                                 | |
| 1 | 2872 | 
                                    
                                    89.9%
                                 | |
| 2 | 40 | 
                                    
                                    1.3%
                                 | |
| 3 | 41 | 
                                    
                                    1.3%
                                 | |
| Sysmiss | 6281 |