Freight moving among the three North American countries hit an all-time high last fall. According to data from the U.S. Department of Transportation's Bureau of Transportation Statistics (BTS), truck, rail and pipeline cargo transported between the United States, Canada and Mexico rose 11.4 percent in September 2005 over September 2004 levels, totaling $61.2 billion. That's the highest monthly total ever recorded.

BTS reports that total North American surface transportation trade rose 1.6 percent in September from August, which at $60.2 billion was the previous monthly high. The agency noted that trucks carried 63 percent of imports and 79 percent of exports by value.