Figure 8,,,,, "Top Five Commodities of U.S. Merchandise Trade with Canada and Mexico by Truck, 2007 ",,,,, ,Exports,Imports,Total Trade,, Measuring and testing instruments (HTS 90),8,9,17,, Plastics and articles thereof (HTS 39),16,9,25,, Motor vehicles and parts (HTS 87),44,43,88,, "Computers, industrial machinery, and parts (HTS 84)",51,41,92,, Electrical machinery and equipment and parts (HTS 85),40,61,101,, "SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transborder Freight Data, as of October 2008",,,,,