| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 1271 | 
                                    
                                    15.5%
                                 | 
| 2 | NO | 4659 | 
                                    
                                    56.7%
                                 | 
| 9 | NO RESPONDE | 75 | 
                                    
                                    0.9%
                                 | 
| Sysmiss | 2212 | 
                                    
                                    26.9%
                                 |