ESTIMATED_POPULATION_WITHIN_400 (type: esriFieldTypeInteger, alias: ESTIMATED POPULATION WITHIN 400m OF POS, SQL Type: sqlTypeInteger, nullable: true, editable: true)
PROPORTION_OF_POPULATION_WITHIN (type: esriFieldTypeDouble, alias: PROPORTION OF POPULATION WITHIN 400M OF POS, SQL Type: sqlTypeFloat, nullable: true, editable: true)