Table 2. North American Surface Transportation Trade by Value,,,, "(millions of dollars) ",,,, Month,2003,2004,"Percent Change 2003-2004", January,"43,756","45,686",4.4, February,"43,835","48,170",9.9, March,"49,358","56,269",14.0, April,"46,842","53,195",13.6, May,"48,813","53,155",8.9, June,"47,432","55,422",16.9, July,"42,607","48,096",12.9, August,"45,024","53,577",19.0, September,"48,867","54,913",12.4, October,"52,362",,, November,"48,456",,, December,"45,425",,, Year to Date,"416,534","468,483",12.5, Annual,"562,780",,, "Source: BTS Transborder Surface Freight Dataset, http://www.bts.gov/transborder/",,,,