Updated:  

Census data from the Mexican government indicate an extraordinary decline in the number of Mexican immigrants going to the United States.

The recently released data show that about 226,000 fewer people emigrated from Mexico to other countries during the year that ended in August 2008 than during the previous year, a decline of 25 percent. All but a very small fraction of emigration, both legal and illegal, from Mexico is to the United States.http://www.nytimes.com/2009/05/15/us/15immig.html?_r=1&ref=us&pagewanted=print

By Julia Preston -- New York Times

Legal Immigration
Illegal Immigration
overpopulation