Salt - Historical Statistics (Data Series 140) 2017 update
Salt historical statistics data table (.XLSX format) 2017 update for USGS Data Series 140 - Historical Statistics for Mineral and Material Commodities in the United States. The data series contains information on approximately 90 mineral commodities, including production, imports, exports, and stocks; reported and apparent consumption; and unit value (the real and nominal price in U.S. dollars of a metric ton of apparent consumption). For many of the commodities, data are reported as far back as 1900. Each commodity file includes a document that describes the units of measure, defines terms, and lists USGS contacts for additional information.