Trade using surface transportation between the United States and its North American Free Trade Agreement (NAFTA) partners, Canada and Mexico, was 8.2 percent higher in April 2012 than in April 2011, totaling $79.8 billion, according to the Bureau of Transportation Statistics (BTS) of the U.S. Department of Transportation. BTS, a part of the Research and Innovative Technology Administration, reported that the April 2012 value of U.S. surface transportation trade with Canada and Mexico rose 7.4 percent from April 2008, early in the recession, and increased by 60.4 percent from April 2009, late in the recession. Numbers in the press release are not adjusted for inflation. The value of U.S. surface transportation trade with Canada and Mexico in April increased by 70.5 percent compared to April 2002, a period of 10 years. Imports in April were up 60.2 percent since April 2002, while exports were up 84.3 percent. See Transborder Press Releases for historical data. Surface transportation includes freight movements by truck, rail, pipeline, mail, Foreign Trade Zones, and other modes of transport. In April, 86.5 percent of U.S. trade by value with Canada and Mexico moved via land, 9.8 percent moved by vessel, and 3.7 percent moved by air. U.S.-Canada and U.S.-Mexico surface transportation trade in April 2012 both increased compared to April 2011 with U.S.-Canada trade reaching $47.2 billion, a 5.6 percent increase, and U.S.-Mexico trade reaching $32.6 billion, a 12.0 percent increase. For trade statistics by mode, see Table 4 for Canada and Table 6 for Mexico. See BTS Transborder Data Release for summary tables, state rankings and additional data. See North American Transborder Freight Data for historical data.