| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 | 
                                    
                                    0.6%
                                 | |
| 1 | 322 | 
                                    
                                    97%
                                 | |
| 2 | 8 | 
                                    
                                    2.4%
                                 | |
| Sysmiss | 895 |