Table 1 Shipment Characteristics by Mode of Transportation for the United States: 2012
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Estimates are based on preliminary data from the 2012 Commodity Flow Survey. Because of rounding, estimates may not be additive
Mode of transportation2012 Value(million $)Value (Percent of Total)2012 Tons(thousands)Tons (Percent of Total)2012 Ton–miles (1)(millions)Ton-miles (...