Figure 7,,,,,
Top Commodities' Share of U.S. Merchandise Surface Trade with Canada and Mexico by Weight: 2004,,,,,
"(Percentage)
",,,,,
Description, Percentage ,,,,
All other, 33.2 ,,,,
"Electrical machinery, equipment, and parts", 2.3 ,,,,
Cereals, 2.9 ,,,,
"Salt, stone, and cement", 3.2 ,,,,
"*Nuclear reactors, machinery, and  parts ", 4.1 ,,,,
Plastics and articles thereof, 4.2 ,,,,
Iron and steel, 4.7 ,,,,
Paper and paperboard, 4.7 ,,,,
Wood and articles, 4.7 ,,,,
Motor vehicles and parts, 7.1 ,,,,
"Mineral fuels, oils, and  waxes", 28.8 ,,,,
"NOTES: These data reflect U.S. import and export trade with Canada and Mexico. Weights of export shipments by land modes are estimates from the Bureau of Transportation Statistics. 

*""Nuclear reactors and parts"" is a very small portion of trade under this commodity grouping (HS 84).  The majority of trade for this commodity is computer-related machinery and parts.  ",,,,,
"SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transborder Freight Data, as of May 2005.",,,,,