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{"definition": "Choropleth map displaying the change in corn harvested for grain by county from 2007 to 2012. There are 6 categories which show the significance of the increases and decreases in corn harvested for grain. Most of the significant changes occurred in counties in the North Central and Central states. Largest increases are in the North Central states, and largest decreases are in the Central states.", "availableYears": "2012", "name": "Corn Harvested for Grain - Change in Acreage: 2007 to 2012", "units": "Change in Acres", "shortName": "y12_M301", "geographicLevel": "County/County-equivalent", "dataSources": "NASS"} |