| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 257 | 
                                    
                                    24.9%
                                 | 
| 2 | NO | 485 | 
                                    
                                    47%
                                 | 
| Sysmiss | 290 | 
                                    
                                    28.1%
                                 |