Table 1. Value of Monthly U.S. Surface Trade with Canada and Mexico ,,, (millions of dollars),,, Month,2004,2005,Percent Change 2004-2005 January,"45,686","52,334",14.6 February,"48,170","53,592",11.3 March,"56,269","59,436",5.6 April,"53,195","58,297",9.6 May,"53,155","57,870",8.9 June,"55,422","59,431",7.2 July,"48,096","49,690",3.3 August,"53,577","60,188",12.3 September,"54,913","61,166",11.4 October,"56,880","63,985",12.5 November,"56,134","62,894",12.0 December,"52,065","59,104",13.5 Year-to-date,"633,563","697,987",10.2 Annual,"633,563","697,987",10.2 Note: Numbers may not add to totals due to rounding.,,, "Source: BTS Transborder Surface Freight Dataset, http://www.bts.gov/transborder/",,,