|Iron and steel (HTS 72)||0||1||1|
|Ores, slag and ash (HTS 26)||1||0||1|
|Motor vehicles and parts (HTS 87)||0||2||2|
|Organic chemicals (HTS 29)||4||1||4|
|Mineral fuels, oils and waxes (HTS 27)||8||49||57|
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transborder Freight Data as of October 2008.