| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 1474 | 
                                    
                                    14.6%
                                 | 
| 2 | NO | 560 | 
                                    
                                    5.5%
                                 | 
| 9 | NO RESPONDE | 8 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 8051 | 
                                    
                                    79.8%
                                 |