| Value | Category | Cases | |
|---|---|---|---|
| 0 | 226 | 
                                    
                                    81.6%
                                 | |
| 1 | 46 | 
                                    
                                    16.6%
                                 | |
| 2 | 4 | 
                                    
                                    1.4%
                                 | |
| 3 | 1 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 19480 |