| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| -8 | Refusal (spontaneous) | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 1 | 
                                                                 
                                    
                                    10%
                                 
                                                             | 
                                                        
                    
| 2 | No | 9 | 
                                                                 
                                    
                                    90%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 382 |