Surface transportation trade between the United States and North American Free Trade Agreement partners Canada and Mexico rose 15.7 percent in May over May 2010, to $77.3 billion, according to the Bureau of Transportation Statistics of the U.S. Department of Transportation.
BTS reported surface transportation trade with Canada year over year increased 15.1 percent to $46.3 billion, while trade with Mexico rose 16.6 percent to $31.0 billion.
Surface transportation includes freight movements by truck, rail, pipeline, mail and Foreign Trade Zones. In May, 84.8 percent of U.S. trade by value with Canada and Mexico moved via land.