Figure 9,,,,,, "Value Per Ton of Shipments by Distance Shipped: 1993, 1997, 2002 * (Commodity Flow Survey Data Only) ",,,,,, Distance,Year,,,,, ,1993,1997,2002,,, All distances,603,626,733,,, Less than 100 miles,356,368,440,,, 100 to 250 miles,808,810,866,,, 250 to 999 miles,"1,065","1,130","1,232",,, "1,000 or more miles","2,233","2,472","2,209",,, " KEY: * 2002 data are preliminary.",,,,,, NOTE: Shipments are grouped into distance categories based on Great Circle Distance (GCD). GCD is the shortest distance between 2 points on the surface of a sphere.,,,,,, "SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, based on the 1993, 1997, and preliminary 2002 Commodity Flow Survey data.",,,,,,