| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 1225 | 
                                    
                                    14.9%
                                 | 
| 2 | NO | 32 | 
                                    
                                    0.4%
                                 | 
| 9 | NO RESPONDE | 6 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 6954 | 
                                    
                                    84.6%
                                 |