| Value | Category | Cases | |
|---|---|---|---|
| 0 | free/no cost | 2833 | 
                                                                 
                                    
                                    67.7%
                                 
                                                             | 
                                                        
                    
| 1 | riels | 1319 | 
                                                                 
                                    
                                    31.5%
                                 
                                                             | 
                                                        
                    
| 2 | dollars | 7 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 9 | special answers | 24 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 8053 |