| Value | Category | Cases | |
|---|---|---|---|
| 1 | 411 | 
                                    
                                    23.4%
                                 | |
| 3 | 1281 | 
                                    
                                    72.8%
                                 | |
| 8 | 68 | 
                                    
                                    3.9%
                                 | |
| Sysmiss | 13 |