| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 | 
                                    
                                    8.3%
                                 | 
| 150 | 1 | 
                                    
                                    0.6%
                                 | |
| 200 | 2 | 
                                    
                                    1.3%
                                 | |
| 300 | 2 | 
                                    
                                    1.3%
                                 | |
| 306 | 1 | 
                                    
                                    0.6%
                                 | |
| 500 | 6 | 
                                    
                                    3.8%
                                 | |
| 700 | 2 | 
                                    
                                    1.3%
                                 | |
| 900 | 1 | 
                                    
                                    0.6%
                                 | |
| 1000 | 6 | 
                                    
                                    3.8%
                                 | |
| 1500 | 5 | 
                                    
                                    3.2%
                                 | |
| 1600 | 1 | 
                                    
                                    0.6%
                                 | |
| 1800 | 2 | 
                                    
                                    1.3%
                                 | |
| 2000 | 9 | 
                                    
                                    5.8%
                                 | |
| 2500 | 2 | 
                                    
                                    1.3%
                                 | |
| 3000 | 12 | 
                                    
                                    7.7%
                                 | |
| 3500 | 1 | 
                                    
                                    0.6%
                                 | |
| 4000 | 7 | 
                                    
                                    4.5%
                                 | |
| 5000 | 15 | 
                                    
                                    9.6%
                                 | |
| 5500 | 1 | 
                                    
                                    0.6%
                                 | |
| 6000 | 2 | 
                                    
                                    1.3%
                                 | |
| 7000 | 2 | 
                                    
                                    1.3%
                                 | |
| 8000 | 2 | 
                                    
                                    1.3%
                                 | |
| 10000 | 18 | 
                                    
                                    11.5%
                                 | |
| 12000 | 1 | 
                                    
                                    0.6%
                                 | |
| 15000 | 6 | 
                                    
                                    3.8%
                                 | |
| 20000 | 2 | 
                                    
                                    1.3%
                                 | |
| 25000 | 2 | 
                                    
                                    1.3%
                                 | |
| 29000 | 1 | 
                                    
                                    0.6%
                                 | |
| 30000 | 6 | 
                                    
                                    3.8%
                                 | |
| 40000 | 2 | 
                                    
                                    1.3%
                                 | |
| 41666 | 1 | 
                                    
                                    0.6%
                                 | |
| 41840 | 1 | 
                                    
                                    0.6%
                                 | |
| 45000 | 1 | 
                                    
                                    0.6%
                                 | |
| 50000 | 3 | 
                                    
                                    1.9%
                                 | |
| 60000 | 2 | 
                                    
                                    1.3%
                                 | |
| 70000 | 4 | 
                                    
                                    2.6%
                                 | |
| 84000 | 1 | 
                                    
                                    0.6%
                                 | |
| 100000 | 5 | 
                                    
                                    3.2%
                                 | |
| 110000 | 1 | 
                                    
                                    0.6%
                                 | |
| 160000 | 1 | 
                                    
                                    0.6%
                                 | |
| 200000 | 1 | 
                                    
                                    0.6%
                                 | |
| 250000 | 1 | 
                                    
                                    0.6%
                                 | |
| 300000 | 1 | 
                                    
                                    0.6%
                                 | |
| Sysmiss | 799 |