| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 18 | 
                                    
                                    0.8%
                                 | 
| 2 | NO | 4 | 
                                    
                                    0.2%
                                 | 
| Sysmiss | 2131 | 
                                    
                                    99%
                                 |