This figure is the estimated amount of the selected crop being held as on-farm inventory. Inventory is assigned to each farmer’s bins based on a combination of the volumes of various crops the farmer has grown in the most recent crop year and propensity-to-store data based on statewide allocation of the available storage space (as published by the USDA). The farm-level inventory data are then normalized to be consistent with state-level inventory data reported by the USDA in its quarterly grain stocks reports.