| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 8191 | 
                                    
                                    81.2%
                                 | 
| 2 | NO | 251 | 
                                    
                                    2.5%
                                 | 
| 9 | NO RESPONDE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 1650 | 
                                    
                                    16.3%
                                 |