| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 267 | 
                                    
                                    32.9%
                                 | 
| 2 | NO | 21 | 
                                    
                                    2.6%
                                 | 
| Sysmiss | 524 | 
                                    
                                    64.5%
                                 |