The Pew Hispanic Center estimated in December 2012 that there were 11.1 million unauthorized immigrants living in the U.S. as of March 2011, unchanged from the previous two years and a continuation of the sharp decline from its peak of 12 million in 2007. This decline has been the first significant decrease following two decades of growth up to 2007 [5]. Net immigration from Mexico to the U.S. has stopped and possibly reversed since 2010 and at its peak in 2000, about 770,000 immigrants arrived annually from Mexico; the majority arrived illegally. By 2010, the inflow had dropped to
The Pew Hispanic Center estimated in December 2012 that there were 11.1 million unauthorized immigrants living in the U.S. as of March 2011, unchanged from the previous two years and a continuation of the sharp decline from its peak of 12 million in 2007. This decline has been the first significant decrease following two decades of growth up to 2007 [5]. Net immigration from Mexico to the U.S. has stopped and possibly reversed since 2010 and at its peak in 2000, about 770,000 immigrants arrived annually from Mexico; the majority arrived illegally. By 2010, the inflow had dropped to