| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 103 | 
                                    
                                    16.9%
                                 | 
| 2 | NO | 206 | 
                                    
                                    33.7%
                                 | 
| Sysmiss | 302 | 
                                    
                                    49.4%
                                 |