| Value | Category | Cases | |
|---|---|---|---|
| 2 | NON | 434 | 
                                    
                                    2.3%
                                 | 
| 2 | NON | 216 | 
                                    
                                    1.1%
                                 | 
| Sysmiss | 18162 | 
                                    
                                    96.5%
                                 |