| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 1531 | 
                                    
                                    15.2%
                                 | 
| 2 | NO | 378 | 
                                    
                                    3.8%
                                 | 
| Sysmiss | 8171 | 
                                    
                                    81.1%
                                 |