| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 384 | 
                                    
                                    37.2%
                                 | 
| 2 | NO | 158 | 
                                    
                                    15.3%
                                 | 
| Sysmiss | 490 | 
                                    
                                    47.5%
                                 |