| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 | 
                                    
                                    24%
                                 | 
| 0 | 1 | 
                                    
                                    1%
                                 | |
| 100 | 3 | 
                                    
                                    3.1%
                                 | |
| 200 | 5 | 
                                    
                                    5.2%
                                 | |
| 300 | 7 | 
                                    
                                    7.3%
                                 | |
| 400 | 4 | 
                                    
                                    4.2%
                                 | |
| 405 | 1 | 
                                    
                                    1%
                                 | |
| 480 | 1 | 
                                    
                                    1%
                                 | |
| 500 | 2 | 
                                    
                                    2.1%
                                 | |
| 600 | 1 | 
                                    
                                    1%
                                 | |
| 800 | 1 | 
                                    
                                    1%
                                 | |
| 900 | 1 | 
                                    
                                    1%
                                 | |
| 1000 | 4 | 
                                    
                                    4.2%
                                 | |
| 1200 | 2 | 
                                    
                                    2.1%
                                 | |
| 1320 | 1 | 
                                    
                                    1%
                                 | |
| 1800 | 1 | 
                                    
                                    1%
                                 | |
| 2000 | 4 | 
                                    
                                    4.2%
                                 | |
| 2400 | 1 | 
                                    
                                    1%
                                 | |
| 3000 | 1 | 
                                    
                                    1%
                                 | |
| 3600 | 1 | 
                                    
                                    1%
                                 | |
| 4000 | 3 | 
                                    
                                    3.1%
                                 | |
| 4200 | 1 | 
                                    
                                    1%
                                 | |
| 5000 | 2 | 
                                    
                                    2.1%
                                 | |
| 6000 | 2 | 
                                    
                                    2.1%
                                 | |
| 9600 | 1 | 
                                    
                                    1%
                                 | |
| 9840 | 1 | 
                                    
                                    1%
                                 | |
| 10000 | 1 | 
                                    
                                    1%
                                 | |
| 10800 | 1 | 
                                    
                                    1%
                                 | |
| 15000 | 1 | 
                                    
                                    1%
                                 | |
| 18000 | 1 | 
                                    
                                    1%
                                 | |
| 20000 | 2 | 
                                    
                                    2.1%
                                 | |
| 24000 | 1 | 
                                    
                                    1%
                                 | |
| 25000 | 1 | 
                                    
                                    1%
                                 | |
| 30000 | 1 | 
                                    
                                    1%
                                 | |
| 38000 | 1 | 
                                    
                                    1%
                                 | |
| 50000 | 1 | 
                                    
                                    1%
                                 | |
| 53000 | 1 | 
                                    
                                    1%
                                 | |
| 60000 | 1 | 
                                    
                                    1%
                                 | |
| 80000 | 1 | 
                                    
                                    1%
                                 | |
| 90000 | 1 | 
                                    
                                    1%
                                 | |
| 180000 | 1 | 
                                    
                                    1%
                                 | |
| 200000 | 1 | 
                                    
                                    1%
                                 | |
| 600000 | 1 | 
                                    
                                    1%
                                 | |
| 1500000 | 1 | 
                                    
                                    1%
                                 | |
| 2400000 | 1 | 
                                    
                                    1%
                                 | |
| 10800000 | 1 | 
                                    
                                    1%
                                 | |
| Sysmiss | 516 |