| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 360 | 
                                    
                                    9.6%
                                 | 
| 2 | NO | 2646 | 
                                    
                                    70.4%
                                 | 
| 9 | NO RESPONDE | 6 | 
                                    
                                    0.2%
                                 | 
| Sysmiss | 745 | 
                                    
                                    19.8%
                                 |