The U.S. Department of Commerce forecasts continued strong growth in international travel to the United States from 2011 to 2016. Visitor volume is expected to increase 6% in 2011 and reach 63 million visitors, building on 9% growth in 2010. Annual growth of 5% is forecasted through 2016, bringing the total visitors to 81 million, a 36% increase over 2010. Top countries contributing to growth include Canada, Mexico, China, and Brazil. The forecast considers the potential impacts of national travel promotion efforts through the Corporation for Travel Promotion.