Table 4. U.S. Merchandise Trade with Canada by Surface Modes of Transportation,,,,,, (millions of dollars),,,,,, Mode,,January 2008,December 2008,January 2009,Percent Change Dec. 2008-Jan. 2009,Percent Change January 2008-2009 All Surface Modes,Imports,"23,752","17,821","15,655",-12.2,-34.1 ,Exports,"18,290","15,072","13,317",-11.6,-27.2 ,Total,"42,043","32,893","28,972",-11.9,-31.1 ,,,,,, Truck,Imports,"11,584","9,047","7,956",-12.1,-31.3 ,Exports,"13,922","11,488","10,133",-11.8,-27.2 ,,,,,, Rail,Imports,"4,947","3,484","3,050",-12.4,-38.3 ,Exports,"2,069","1,679","1,427",-15.0,-31.0 ,,,,,, Pipeline,Imports,"5,984","4,378","3,800",-13.2,-36.5 ,Exports,353,217,321,47.9,-9.2 "Source: BTS TransBorder Freight Data, http://www.bts.gov/transborder/",,,,,, "Note: Numbers may not add to totals due to rounding. Percent changes based on numbers prior to rounding. The value of trade for all surface modes is not equal to the sum of truck, rail and pipeline modes, it also includes shipments made by mail, foreign trade zones and other transportation.  For additional detail refer to the “Data Fields” Section of the TransBorder web page: http://www.bts.gov/transborder/TBDR_DataFields.html.",,,,,, ,,,,,, ,,,,,,