| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 | 
                                                                 
                                    
                                    6.2%
                                 
                                                             | 
                                                        
                    
| -8 | Refusal (spontaneous) | 4 | 
                                                                 
                                    
                                    3.5%
                                 
                                                             | 
                                                        
                    
| 0 | No payments or gifts are paid | 99 | 
                                                                 
                                    
                                    87.6%
                                 
                                                             | 
                                                        
                    
| 1 | 1 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 10 | 1 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 15 | 1 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 1 |