| Value | Category | Cases | |
|---|---|---|---|
| 1 | sà | 2 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| 2 | no | 549 | 
                                                                 
                                    
                                    99.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 147 |