| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 266 | 
                                    
                                    19.5%
                                 | 
| 2 | NO | 15 | 
                                    
                                    1.1%
                                 | 
| Sysmiss | 1083 | 
                                    
                                    79.4%
                                 |