| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 800 | 1 | 
                                    
                                    2.4%
                                 | |
| 2500 | 2 | 
                                    
                                    4.8%
                                 | |
| 3000 | 1 | 
                                    
                                    2.4%
                                 | |
| 5000 | 1 | 
                                    
                                    2.4%
                                 | |
| 6000 | 1 | 
                                    
                                    2.4%
                                 | |
| 8000 | 2 | 
                                    
                                    4.8%
                                 | |
| 10000 | 1 | 
                                    
                                    2.4%
                                 | |
| 22000 | 1 | 
                                    
                                    2.4%
                                 | |
| 25000 | 2 | 
                                    
                                    4.8%
                                 | |
| 30000 | 4 | 
                                    
                                    9.5%
                                 | |
| 35000 | 2 | 
                                    
                                    4.8%
                                 | |
| 40000 | 1 | 
                                    
                                    2.4%
                                 | |
| 45000 | 2 | 
                                    
                                    4.8%
                                 | |
| 50000 | 5 | 
                                    
                                    11.9%
                                 | |
| 60000 | 2 | 
                                    
                                    4.8%
                                 | |
| 70000 | 1 | 
                                    
                                    2.4%
                                 | |
| 80000 | 2 | 
                                    
                                    4.8%
                                 | |
| 90000 | 1 | 
                                    
                                    2.4%
                                 | |
| 100000 | 3 | 
                                    
                                    7.1%
                                 | |
| 120000 | 1 | 
                                    
                                    2.4%
                                 | |
| 150000 | 1 | 
                                    
                                    2.4%
                                 | |
| 200000 | 1 | 
                                    
                                    2.4%
                                 | |
| 350000 | 1 | 
                                    
                                    2.4%
                                 | |
| 500000 | 1 | 
                                    
                                    2.4%
                                 | |
| 600000 | 1 | 
                                    
                                    2.4%
                                 | |
| 800000 | 1 | 
                                    
                                    2.4%
                                 | |
| Sysmiss | 108 |