| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 | 
                                                                 
                                    
                                    6.9%
                                 
                                                             | 
                                                        
                    
| 0 | 7 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    |
| 120 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 200 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 250 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 400 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 450 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 500 | 7 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    |
| 700 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 1000 | 5 | 
                                                                 
                                    
                                    6.9%
                                 
                                                             | 
                                                        
                    |
| 1300 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 1500 | 5 | 
                                                                 
                                    
                                    6.9%
                                 
                                                             | 
                                                        
                    |
| 2000 | 5 | 
                                                                 
                                    
                                    6.9%
                                 
                                                             | 
                                                        
                    |
| 2200 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 2500 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 3000 | 6 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                                                        
                    |
| 4000 | 3 | 
                                                                 
                                    
                                    4.2%
                                 
                                                             | 
                                                        
                    |
| 5000 | 6 | 
                                                                 
                                    
                                    8.3%
                                 
                                                             | 
                                                        
                    |
| 6000 | 5 | 
                                                                 
                                    
                                    6.9%
                                 
                                                             | 
                                                        
                    |
| 7000 | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| 8000 | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| 10000 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 12000 | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    |
| 12350 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| 200000 | 1 | 
                                                                 
                                    
                                    1.4%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 520 |