| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 | 
                                    
                                    1.7%
                                 | 
| 0 | 222 | 
                                    
                                    62.4%
                                 | |
| 20000 | 2 | 
                                    
                                    0.6%
                                 | |
| 50000 | 1 | 
                                    
                                    0.3%
                                 | |
| 100000 | 9 | 
                                    
                                    2.5%
                                 | |
| 120000 | 1 | 
                                    
                                    0.3%
                                 | |
| 150000 | 4 | 
                                    
                                    1.1%
                                 | |
| 200000 | 3 | 
                                    
                                    0.8%
                                 | |
| 220000 | 1 | 
                                    
                                    0.3%
                                 | |
| 250000 | 2 | 
                                    
                                    0.6%
                                 | |
| 300000 | 3 | 
                                    
                                    0.8%
                                 | |
| 350000 | 2 | 
                                    
                                    0.6%
                                 | |
| 400000 | 4 | 
                                    
                                    1.1%
                                 | |
| 500000 | 18 | 
                                    
                                    5.1%
                                 | |
| 600000 | 2 | 
                                    
                                    0.6%
                                 | |
| 700000 | 1 | 
                                    
                                    0.3%
                                 | |
| 750000 | 1 | 
                                    
                                    0.3%
                                 | |
| 1000000 | 18 | 
                                    
                                    5.1%
                                 | |
| 1300000 | 1 | 
                                    
                                    0.3%
                                 | |
| 1500000 | 4 | 
                                    
                                    1.1%
                                 | |
| 1600000 | 4 | 
                                    
                                    1.1%
                                 | |
| 2000000 | 6 | 
                                    
                                    1.7%
                                 | |
| 2200000 | 1 | 
                                    
                                    0.3%
                                 | |
| 2500000 | 2 | 
                                    
                                    0.6%
                                 | |
| 3000000 | 6 | 
                                    
                                    1.7%
                                 | |
| 4000000 | 2 | 
                                    
                                    0.6%
                                 | |
| 4500000 | 1 | 
                                    
                                    0.3%
                                 | |
| 5000000 | 4 | 
                                    
                                    1.1%
                                 | |
| 8000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 10000000 | 5 | 
                                    
                                    1.4%
                                 | |
| 15000000 | 4 | 
                                    
                                    1.1%
                                 | |
| 17500000 | 1 | 
                                    
                                    0.3%
                                 | |
| 18000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 20000000 | 3 | 
                                    
                                    0.8%
                                 | |
| 23000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 25000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 28000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 30000000 | 4 | 
                                    
                                    1.1%
                                 | |
| 35000000 | 1 | 
                                    
                                    0.3%
                                 | |
| 37100000 | 1 | 
                                    
                                    0.3%
                                 | |
| 500000000 | 1 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 244 |