Table 6. Modal Share of U.S. Merchandise Trade with Canada by Surface Modes of Transportation – June 2005,,, ,MODE,AMOUNT,PERCENTAGE IMPORTS,Truck,"12,601",57.0 ,Rail,"4,757",21.5 ,Pipeline,"3,792",17.2 ,3-Mode Total,"21,150",95.7 EXPORTS,Truck,"13,416",79.1 ,Rail,"1,556",9.2 ,Pipeline,149,0.9 ,3-Mode Total,"15,121",89.2 "Note: The value of all surface modes is not equal to the sum of truck, rail and pipeline modes. The value of trade for all surface modes includes shipments made by truck, rail, pipeline, mail, foreign trade zones, other and unknown modes of transportation.  For additional detail refer to the Transborder Surface Freight data ""Sources and Reliability"" statement: http://www.bts.gov/ntda/tbscd/srfin.html",,, "Source: BTS Transborder Surface Freight Dataset, http://www.bts.gov/transborder/",,,