| Value | Category | Cases | |
|---|---|---|---|
| -9999 | DON'T KNOW | 21 | 
                                    
                                    5.5%
                                 | 
| 0 | 296 | 
                                    
                                    77.1%
                                 | |
| 100 | 2 | 
                                    
                                    0.5%
                                 | |
| 200 | 10 | 
                                    
                                    2.6%
                                 | |
| 300 | 1 | 
                                    
                                    0.3%
                                 | |
| 400 | 1 | 
                                    
                                    0.3%
                                 | |
| 500 | 6 | 
                                    
                                    1.6%
                                 | |
| 600 | 1 | 
                                    
                                    0.3%
                                 | |
| 700 | 2 | 
                                    
                                    0.5%
                                 | |
| 740 | 1 | 
                                    
                                    0.3%
                                 | |
| 900 | 1 | 
                                    
                                    0.3%
                                 | |
| 1000 | 11 | 
                                    
                                    2.9%
                                 | |
| 1200 | 2 | 
                                    
                                    0.5%
                                 | |
| 1500 | 3 | 
                                    
                                    0.8%
                                 | |
| 2000 | 1 | 
                                    
                                    0.3%
                                 | |
| 2500 | 2 | 
                                    
                                    0.5%
                                 | |
| 3000 | 6 | 
                                    
                                    1.6%
                                 | |
| 3500 | 1 | 
                                    
                                    0.3%
                                 | |
| 3700 | 1 | 
                                    
                                    0.3%
                                 | |
| 4000 | 3 | 
                                    
                                    0.8%
                                 | |
| 7000 | 1 | 
                                    
                                    0.3%
                                 | |
| 8000 | 3 | 
                                    
                                    0.8%
                                 | |
| 10000 | 2 | 
                                    
                                    0.5%
                                 | |
| 15000 | 1 | 
                                    
                                    0.3%
                                 | |
| 20000 | 2 | 
                                    
                                    0.5%
                                 | |
| 35000 | 1 | 
                                    
                                    0.3%
                                 | |
| 40000 | 1 | 
                                    
                                    0.3%
                                 | |
| 100000 | 1 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 387 |