| Value | Category | Cases | |
|---|---|---|---|
| 0 | 910 | 
                                    
                                    99.2%
                                 | |
| 1 | 6 | 
                                    
                                    0.7%
                                 | |
| 2 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 4041 |