| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 135 | 
                                    
                                    79.9%
                                 | 
| 2 | NO | 14 | 
                                    
                                    8.3%
                                 | 
| Sysmiss | 20 | 
                                    
                                    11.8%
                                 |