| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 46 | 
                                    
                                    0.6%
                                 | 
| 2 | NO | 6842 | 
                                    
                                    83.3%
                                 | 
| 9 | NO RESPONDE | 14 | 
                                    
                                    0.2%
                                 | 
| Sysmiss | 1315 | 
                                    
                                    16%
                                 |