| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 | 
                                                                 
                                    
                                    26%
                                 
                                                             | 
                                                        
                    
| 100 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 200 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 400 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 500 | 3 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 800 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 1000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 1500 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 2000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 2500 | 3 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    |
| 3000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 4000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 4500 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 6000 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 7000 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 8000 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 10000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 15000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 20000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 21000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 25000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 30000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 35000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 36000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 40000 | 2 | 
                                                                 
                                    
                                    4%
                                 
                                                             | 
                                                        
                    |
| 45000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 50000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| 250000 | 1 | 
                                                                 
                                    
                                    2%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 559 |