| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 1 | 
                                    
                                    0.2%
                                 | 
| 2 | NO | 224 | 
                                    
                                    38.4%
                                 | 
| Sysmiss | 358 | 
                                    
                                    61.4%
                                 |