| Value | Category | Cases | |
|---|---|---|---|
| 0 | 81 | 
                                    
                                    88%
                                 | |
| 1 | 10 | 
                                    
                                    10.9%
                                 | |
| 3 | 1 | 
                                    
                                    1.1%
                                 | |
| Sysmiss | 251 |