| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1764 | 
                                    
                                    90.2%
                                 | |
| 1 | 172 | 
                                    
                                    8.8%
                                 | |
| 2 | 20 | 
                                    
                                    1%
                                 | |
| Sysmiss | 11 |