| Value | Category | Cases | |
|---|---|---|---|
| 0 | 8 | 
                                    
                                    24.2%
                                 | |
| 1 | 19 | 
                                    
                                    57.6%
                                 | |
| 2 | 6 | 
                                    
                                    18.2%
                                 | |
| Sysmiss | 612 |