| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 520 | 
                                                                 
                                    
                                    5.8%
                                 
                                                             | 
                                                        
                    
| 2 | NO | 205 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 9 | NO RESPONDE | 4 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8213 | 
                                                                 
                                    
                                    91.8%
                                 
                                                             |