| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 81 | 
                                    
                                    20.2%
                                 | 
| 2 | NO | 245 | 
                                    
                                    61.1%
                                 | 
| Sysmiss | 75 | 
                                    
                                    18.7%
                                 |