Table B-4e. Estimated Standard Error of Percentage for Shipment Characteristics by Shipment Weight: Percent of Total for 2002, 1997 and 1993
Table B-4e. Estimated Standard Error of Percentage for Shipment Characteristics by Shipment Weight: Percent of Total for 2002, 1997 and 1993[Estimates are shown as percents and are based on data from the 2002, 1997, and 1993 Commodity Flow Surveys]
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