| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 | 
                                    
                                    8.1%
                                 | 
| 0 | 6 | 
                                    
                                    16.2%
                                 | |
| 2000 | 1 | 
                                    
                                    2.7%
                                 | |
| 2498 | 1 | 
                                    
                                    2.7%
                                 | |
| 7000 | 1 | 
                                    
                                    2.7%
                                 | |
| 7453 | 1 | 
                                    
                                    2.7%
                                 | |
| 10000 | 2 | 
                                    
                                    5.4%
                                 | |
| 11000 | 1 | 
                                    
                                    2.7%
                                 | |
| 15000 | 1 | 
                                    
                                    2.7%
                                 | |
| 20000 | 2 | 
                                    
                                    5.4%
                                 | |
| 22000 | 1 | 
                                    
                                    2.7%
                                 | |
| 23000 | 1 | 
                                    
                                    2.7%
                                 | |
| 30000 | 1 | 
                                    
                                    2.7%
                                 | |
| 38000 | 1 | 
                                    
                                    2.7%
                                 | |
| 40000 | 1 | 
                                    
                                    2.7%
                                 | |
| 42000 | 1 | 
                                    
                                    2.7%
                                 | |
| 50000 | 2 | 
                                    
                                    5.4%
                                 | |
| 80000 | 1 | 
                                    
                                    2.7%
                                 | |
| 87000 | 1 | 
                                    
                                    2.7%
                                 | |
| 90000 | 1 | 
                                    
                                    2.7%
                                 | |
| 108000 | 1 | 
                                    
                                    2.7%
                                 | |
| 120000 | 1 | 
                                    
                                    2.7%
                                 | |
| 400000 | 1 | 
                                    
                                    2.7%
                                 | |
| 630000 | 1 | 
                                    
                                    2.7%
                                 | |
| 850000 | 1 | 
                                    
                                    2.7%
                                 | |
| 1700000 | 1 | 
                                    
                                    2.7%
                                 | |
| 3000000 | 1 | 
                                    
                                    2.7%
                                 | |
| Sysmiss | 918 |