| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 2 | 
                                    
                                    0.9%
                                 | 
| -9 | Don't know (spontaneous) | 61 | 
                                    
                                    26.6%
                                 | 
| 0 | 89 | 
                                    
                                    38.9%
                                 | |
| 1500000 | 4 | 
                                    
                                    1.7%
                                 | |
| 2000000 | 4 | 
                                    
                                    1.7%
                                 | |
| 2500000 | 3 | 
                                    
                                    1.3%
                                 | |
| 3000000 | 4 | 
                                    
                                    1.7%
                                 | |
| 3500000 | 5 | 
                                    
                                    2.2%
                                 | |
| 4000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 4500000 | 3 | 
                                    
                                    1.3%
                                 | |
| 5000000 | 16 | 
                                    
                                    7%
                                 | |
| 6000000 | 1 | 
                                    
                                    0.4%
                                 | |
| 7000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 7500000 | 2 | 
                                    
                                    0.9%
                                 | |
| 8000000 | 3 | 
                                    
                                    1.3%
                                 | |
| 8500000 | 1 | 
                                    
                                    0.4%
                                 | |
| 9000000 | 1 | 
                                    
                                    0.4%
                                 | |
| 9500000 | 1 | 
                                    
                                    0.4%
                                 | |
| 10000000 | 3 | 
                                    
                                    1.3%
                                 | |
| 11000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 15000000 | 8 | 
                                    
                                    3.5%
                                 | |
| 17000000 | 1 | 
                                    
                                    0.4%
                                 | |
| 18000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 20000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 23000000 | 2 | 
                                    
                                    0.9%
                                 | |
| 25000000 | 3 | 
                                    
                                    1.3%
                                 | |
| 35000000 | 1 | 
                                    
                                    0.4%
                                 | |
| 100000000 | 1 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 131 |