| Value | Category | Cases | |
|---|---|---|---|
| 2 | NO | 276 | 
                                    
                                    7.3%
                                 | 
| 2 | NO | 132 | 
                                    
                                    3.5%
                                 | 
| Sysmiss | 3349 | 
                                    
                                    89.1%
                                 |