| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 340 | 
                                    
                                    10%
                                 | 
| 2 | NO | 231 | 
                                    
                                    6.8%
                                 | 
| Sysmiss | 2820 | 
                                    
                                    83.2%
                                 |