| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 98 | 
                                    
                                    2.6%
                                 | 
| 2 | NO | 307 | 
                                    
                                    8.2%
                                 | 
| 8 | NO SABE | 3 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 3349 | 
                                    
                                    89.1%
                                 |