| Value | Category | 
                                    
                    
                        | 1 | Own pond | 
                                    
                    
                        | 2 | Government institution | 
                                    
                    
                        | 3 | NGO/Project | 
                                    
                    
                        | 4 | Neighbour | 
                                    
                    
                        | 5 | Private trade | 
                                    
                    
                        | 6 | Natural pond | 
                                    
                    
                        | 8 | Other | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.