| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 485 | 
                                    
                                    3.4%
                                 | 
| 2 | NO | 221 | 
                                    
                                    1.5%
                                 | 
| Sysmiss | 13591 | 
                                    
                                    95.1%
                                 |