| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 341 | 
                                    
                                    58.5%
                                 | 
| 2 | NO | 151 | 
                                    
                                    25.9%
                                 | 
| Sysmiss | 91 | 
                                    
                                    15.6%
                                 |