| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 | 
                                    
                                    6.7%
                                 | |
| 3 | 61 | 
                                    
                                    31.4%
                                 | |
| 8 | 120 | 
                                    
                                    61.9%
                                 | |
| Sysmiss | 3340 |