| Value | Category | Cases | |
|---|---|---|---|
| -8 | other error | 0 | 
                                    
                                    0%
                                 | 
| -7 | filter error | 0 | 
                                    
                                    0%
                                 | 
| -4 | no personal income | 0 | 
                                    
                                    0%
                                 | 
| -3 | inapplicable | 13978 | 
                                    
                                    99.9%
                                 | 
| -2 | no answer | 5 | 
                                    
                                    0%
                                 | 
| -1 | does not know | 11 | 
                                    
                                    0.1%
                                 |