| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 99 | 
                                    
                                    2.6%
                                 | 
| 2 | NO | 31 | 
                                    
                                    0.8%
                                 | 
| 8 | NO SABE | 12 | 
                                    
                                    0.3%
                                 | 
| Sysmiss | 3615 | 
                                    
                                    96.2%
                                 |