| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 4 | 
                                    
                                    0.7%
                                 | 
| 2 | NO | 221 | 
                                    
                                    37.9%
                                 | 
| Sysmiss | 358 | 
                                    
                                    61.4%
                                 |