six million of Mexican national origin Illegal immigration across the U.S.-Mexico border Two-thirds Pew What we know about illegal immigration from Mexico net migration over the border from Mexico reported estimates Ibid. Gonzalez-Barbera and Krogstad, 2017 peaked flow of undocumented workers from Mexico reversed course reported down from 12.2 million in 2007 net immigration of Mexicans http://www.pewresearch.org/fact-tank/20 … om-mexico/ 11 million more non-Mexicans than Mexicans are apprehended Pew Pew zero PEW Research on Illegal Immigration reported Pew Research survey estimates Two-thirds PEW Research on Illegal Immigration more non-Mexicans than Mexicans are apprehended PEW Research on Illegal Immigration reported the Pew survey Pew Research Center Two-thirds Two-thirds declined by more than 1 million