| Value | Category | Cases | |
|---|---|---|---|
| 0 | 31 | 
                                    
                                    70.5%
                                 | |
| 1 | 11 | 
                                    
                                    25%
                                 | |
| 2 | 2 | 
                                    
                                    4.5%
                                 | |
| Sysmiss | 1456 |