| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 40 | 
                                    
                                    40.4%
                                 | 
| 0 | 2 | 
                                    
                                    2%
                                 | |
| 1000 | 2 | 
                                    
                                    2%
                                 | |
| 3000 | 1 | 
                                    
                                    1%
                                 | |
| 4800 | 1 | 
                                    
                                    1%
                                 | |
| 6000 | 1 | 
                                    
                                    1%
                                 | |
| 10000 | 1 | 
                                    
                                    1%
                                 | |
| 30000 | 3 | 
                                    
                                    3%
                                 | |
| 31500 | 1 | 
                                    
                                    1%
                                 | |
| 35000 | 1 | 
                                    
                                    1%
                                 | |
| 40000 | 2 | 
                                    
                                    2%
                                 | |
| 50000 | 2 | 
                                    
                                    2%
                                 | |
| 55000 | 1 | 
                                    
                                    1%
                                 | |
| 60000 | 2 | 
                                    
                                    2%
                                 | |
| 70000 | 1 | 
                                    
                                    1%
                                 | |
| 100000 | 12 | 
                                    
                                    12.1%
                                 | |
| 120000 | 3 | 
                                    
                                    3%
                                 | |
| 150000 | 1 | 
                                    
                                    1%
                                 | |
| 175000 | 1 | 
                                    
                                    1%
                                 | |
| 200000 | 2 | 
                                    
                                    2%
                                 | |
| 250000 | 1 | 
                                    
                                    1%
                                 | |
| 300000 | 2 | 
                                    
                                    2%
                                 | |
| 350000 | 1 | 
                                    
                                    1%
                                 | |
| 400000 | 1 | 
                                    
                                    1%
                                 | |
| 500000 | 2 | 
                                    
                                    2%
                                 | |
| 550000 | 1 | 
                                    
                                    1%
                                 | |
| 800000 | 1 | 
                                    
                                    1%
                                 | |
| 850000 | 1 | 
                                    
                                    1%
                                 | |
| 1000000 | 3 | 
                                    
                                    3%
                                 | |
| 1200000 | 1 | 
                                    
                                    1%
                                 | |
| 1250000 | 1 | 
                                    
                                    1%
                                 | |
| 1500000 | 3 | 
                                    
                                    3%
                                 | |
| 3000000 | 1 | 
                                    
                                    1%
                                 | |
| Sysmiss | 513 |