| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 2575 | 
                                    
                                    68.5%
                                 | 
| 2 | NO | 427 | 
                                    
                                    11.4%
                                 | 
| 9 | NO RESPONDE | 10 | 
                                    
                                    0.3%
                                 | 
| Sysmiss | 745 | 
                                    
                                    19.8%
                                 |