| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 53 | 
                                    
                                    6.1%
                                 | 
| 2 | NO | 461 | 
                                    
                                    53.3%
                                 | 
| Sysmiss | 351 | 
                                    
                                    40.6%
                                 |