| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 208 | 
                                    
                                    51.9%
                                 | 
| 0 | 63 | 
                                    
                                    15.7%
                                 | |
| 1 | 2 | 
                                    
                                    0.5%
                                 | |
| 3 | 1 | 
                                    
                                    0.2%
                                 | |
| 4 | 1 | 
                                    
                                    0.2%
                                 | |
| 6 | 2 | 
                                    
                                    0.5%
                                 | |
| 9 | 1 | 
                                    
                                    0.2%
                                 | |
| 10 | 1 | 
                                    
                                    0.2%
                                 | |
| 30 | 2 | 
                                    
                                    0.5%
                                 | |
| 50 | 4 | 
                                    
                                    1%
                                 | |
| 74 | 1 | 
                                    
                                    0.2%
                                 | |
| 100 | 5 | 
                                    
                                    1.2%
                                 | |
| 120 | 1 | 
                                    
                                    0.2%
                                 | |
| 200 | 3 | 
                                    
                                    0.7%
                                 | |
| 215 | 1 | 
                                    
                                    0.2%
                                 | |
| 287 | 1 | 
                                    
                                    0.2%
                                 | |
| 350 | 2 | 
                                    
                                    0.5%
                                 | |
| 400 | 1 | 
                                    
                                    0.2%
                                 | |
| 500 | 5 | 
                                    
                                    1.2%
                                 | |
| 600 | 2 | 
                                    
                                    0.5%
                                 | |
| 960 | 1 | 
                                    
                                    0.2%
                                 | |
| 1000 | 2 | 
                                    
                                    0.5%
                                 | |
| 1200 | 1 | 
                                    
                                    0.2%
                                 | |
| 1270 | 1 | 
                                    
                                    0.2%
                                 | |
| 1400 | 1 | 
                                    
                                    0.2%
                                 | |
| 1462 | 1 | 
                                    
                                    0.2%
                                 | |
| 1500 | 2 | 
                                    
                                    0.5%
                                 | |
| 2000 | 10 | 
                                    
                                    2.5%
                                 | |
| 2200 | 1 | 
                                    
                                    0.2%
                                 | |
| 2500 | 1 | 
                                    
                                    0.2%
                                 | |
| 3000 | 4 | 
                                    
                                    1%
                                 | |
| 3060 | 1 | 
                                    
                                    0.2%
                                 | |
| 3500 | 1 | 
                                    
                                    0.2%
                                 | |
| 3600 | 2 | 
                                    
                                    0.5%
                                 | |
| 4000 | 4 | 
                                    
                                    1%
                                 | |
| 4500 | 1 | 
                                    
                                    0.2%
                                 | |
| 5000 | 11 | 
                                    
                                    2.7%
                                 | |
| 5830 | 1 | 
                                    
                                    0.2%
                                 | |
| 6000 | 4 | 
                                    
                                    1%
                                 | |
| 6228 | 1 | 
                                    
                                    0.2%
                                 | |
| 7000 | 1 | 
                                    
                                    0.2%
                                 | |
| 8000 | 2 | 
                                    
                                    0.5%
                                 | |
| 8078 | 1 | 
                                    
                                    0.2%
                                 | |
| 9000 | 1 | 
                                    
                                    0.2%
                                 | |
| 10000 | 3 | 
                                    
                                    0.7%
                                 | |
| 12000 | 3 | 
                                    
                                    0.7%
                                 | |
| 16000 | 1 | 
                                    
                                    0.2%
                                 | |
| 20000 | 2 | 
                                    
                                    0.5%
                                 | |
| 22800 | 1 | 
                                    
                                    0.2%
                                 | |
| 25000 | 2 | 
                                    
                                    0.5%
                                 | |
| 30000 | 2 | 
                                    
                                    0.5%
                                 | |
| 36000 | 1 | 
                                    
                                    0.2%
                                 | |
| 36870 | 1 | 
                                    
                                    0.2%
                                 | |
| 40000 | 1 | 
                                    
                                    0.2%
                                 | |
| 49900 | 1 | 
                                    
                                    0.2%
                                 | |
| 50000 | 3 | 
                                    
                                    0.7%
                                 | |
| 85000 | 1 | 
                                    
                                    0.2%
                                 | |
| 100000 | 3 | 
                                    
                                    0.7%
                                 | |
| 135000 | 1 | 
                                    
                                    0.2%
                                 | |
| 200000 | 3 | 
                                    
                                    0.7%
                                 | |
| 300000 | 2 | 
                                    
                                    0.5%
                                 | |
| 300314 | 1 | 
                                    
                                    0.2%
                                 | |
| 758442 | 1 | 
                                    
                                    0.2%
                                 | |
| 1000000 | 1 | 
                                    
                                    0.2%
                                 | |
| 2000000 | 1 | 
                                    
                                    0.2%
                                 | |
| 17600000 | 1 | 
                                    
                                    0.2%
                                 | |
| 30000000 | 1 | 
                                    
                                    0.2%
                                 | |
| 120000000 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 554 |