Figure 1 Value, Weight, and Ton-Miles of U.S. Commercial Freight Shipments: 1993, 1997, and 2002*
Figure 1 Value, Weight, and Ton-Miles of U.S. Commercial Freight Shipments: 1993, 1997, and 2002*Excel | CSV | Figure Version
Year Value (Trillions of dollars) Tons (Billions of short tons) Ton-miles (Trillions ton-miles) 1993 7.2 13.4...