| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 4969 | 
                                    
                                    49.2%
                                 | 
| 2 | NO | 3515 | 
                                    
                                    34.8%
                                 | 
| 9 | NO RESPONDE | 6 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 1603 | 
                                    
                                    15.9%
                                 |