| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 235 | 
                                    
                                    2.9%
                                 | 
| 2 | NO | 5710 | 
                                    
                                    69.5%
                                 | 
| 9 | NO RESPONDE | 60 | 
                                    
                                    0.7%
                                 | 
| Sysmiss | 2212 | 
                                    
                                    26.9%
                                 |