"Commodities from Mexico to Arkansas by Rail ,1998" "(Weight in Metric or US Short Tons, Value in Current US Dollars ($))" Rank,Commodity Code,Commodity Description,Value,Metric Tons,US Short Tons ,1998 All Commodities from Mexico by by Rail,,2861753,10558.3,11638.6 "1","22","Beverages, spirits and vinegar","1,751,166","4,509.5","4,970.9" "2","28","Inorganic chemicals; Organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes","763,001","5,668.6","6,248.6" "3","74","Copper and articles thereof","227,686","135.2","149.1" "4","48","Paper and paperboard; Articles of paper pulp, of paper or of paperboard","100,541","185.6","204.6" "5","72","Iron and steel","19,359","59.4","65.5" "Note that data between 1993-1996 include transshipment activity (i.e., shipments which entered or " "exited the United States by way of a US Customs port on the northern border but" "whose origin or final destination was other than Mexico). Data beginning with January" "1997 do not include transshipment activity. Users should note these differences before" "comparing figures for 1993-1996 with 1997 and subsequent year data. " "SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics," "Transborder Surface Freight Data. "