| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 6512 | 
                                    
                                    64.5%
                                 | 
| 2 | NO | 1972 | 
                                    
                                    19.5%
                                 | 
| 9 | NO RESPONDE | 6 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 1603 | 
                                    
                                    15.9%
                                 |