| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 39 | 
                                    
                                    23.1%
                                 | 
| 2 | NO | 110 | 
                                    
                                    65.1%
                                 | 
| Sysmiss | 20 | 
                                    
                                    11.8%
                                 |