| Value | Category | Cases | |
|---|---|---|---|
| 1 | 4 | 
                                    
                                    0.4%
                                 | |
| 3 | 994 | 
                                    
                                    95.7%
                                 | |
| 8 | 41 | 
                                    
                                    3.9%
                                 | |
| Sysmiss | 2495 |