| Value | Category | 
                                    
                    
                        | 1 | rain-fed (no equipment, only natural rainfall) | 
                                    
                    
                        | 2 | irrigated using irrigation equipment (e.g. rain, | 
                                    
                    
                        | 3 | other. specify 1: | 
                                    
                    
                        | 4 | swamp/wetland | 
                            
            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.