Definitions of fields in the associated CSV files admin[X]Name - Name of the administrative unit from the COD for admin level [X]. Note that if the administrative unit has parents in the next level of the administrative unit hierarchy, a column for admin[X-1]Name, admin[X-2]name, and so on will appear. adminXPcod - Unique identifier (p-code) for the administrative unit for admin level X. Note that if the administrative unit has parents in the next level of the administrative unit hierarchy, a column for admin[X-1]Pcod, admin[X-2]Pcod, and so on will appear. adminXRefN - Name of the administrative unit from the COD for admin level X with no accented characters adminXAltN - 1st alternative name for the administrative unit from the COD for admin level X admin2Al_1 - 2nd alternative name for the administrative unit from the COD for admin level X date_ - the date the data was originally developed by the source validOn - the date the COD Service was intially created ValidTo - the date the COD version was retired (and replaced by another COD dataset) NON_NULL_CELLS - number of non-null grid cells in the administrative unit NULL_CELLS - number of null cells in the administrative unit MIN - minimum population value found in the grid cells within administrative unit MAX - maximum population value found in the grid cells within administrative unit RANGE - range of population values found in the grid cells within administrative unit MEAN - average of population values found in the grid cells within administrative unit STDDEV - standard deviation of population values found in the grid cells within administrative unit VARIANCE - variance of population values found in the grid cells within administrative unit COEFF_VAR - coefficient of variance of population values found in the grid cells within administrative unit SUM - the total estimated population of the administrative unit, calculated as the sum of population values found in the grid cells within administrative unit