| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| -8 | Refusal (spontaneous) | 1 | 
                                    
                                    12.5%
                                 | 
| 230 | 1 | 
                                    
                                    12.5%
                                 | |
| 3000 | 1 | 
                                    
                                    12.5%
                                 | |
| 5000 | 1 | 
                                    
                                    12.5%
                                 | |
| 15000 | 1 | 
                                    
                                    12.5%
                                 | |
| 18000 | 1 | 
                                    
                                    12.5%
                                 | |
| 25000 | 1 | 
                                    
                                    12.5%
                                 | |
| 60000 | 1 | 
                                    
                                    12.5%
                                 | |
| Sysmiss | 89 |