(CNN) -- Here's a look at what you need to know about U.S. immigration statistics.
Immigration Statistics: 2012 - U.S. Immigration and Customs Enforcement removes 409,849 undocumented immigrants.
2011 - The estimated number of undocumented immigrants in the U.S. is 11.5 million.
The undocumented immigrant population grew by 27% between 2000 and 2009.
59% of undocumented immigrants are from Mexico.
2.8 million undocumented residents live in California, while 1.8 million reside in Texas.
Timeline: 2008 - The Dept. of Homeland Security apprehended 792,000 foreign nationals. 88% of those arrested were natives of Mexico. Immigration and Customs Enforcement apprehended 379,000 people.
2008 - The Dept. of Homeland Security removed 359,000 undocumented immigrants from the U.S. - Repatriated to Mexico - 69% - Repatriated to Honduras - 8% - Repatriated to Guatemala - 7.7%
2008 - 811,000 undocumented immigrants accepted offers to return to their home countries without being forcibly removed.
2008 - 97,100 criminals who were also undocumented immigrants were removed from the U.S. by the Dept. of Homeland Security. 36% were convicted of drug-related crimes.
2009 - The number of children born to at least one undocumented-immigrant parent was 350,000. These made up 8% of all U.S. births.
2010 - The total number of undocumented immigrants in the nation's labor force in U.S. is 8 million. They made up 5.2% of the labor force in 2010.
2010 - 1.04 million people received legal permanent resident status. - Born in Mexico - 139,120 - Born in China - 70,863 - Born in the Philippines - 58,173
2011 - U.S. Immigration and Customs Enforcement removed 396,906 undocumented immigrants from the U.S. - 216,698 (nearly 55%) had been convicted of felonies or misdemeanors, the largest number in the agency's history.
April 23, 2012 - The Pew Hispanic center announces that the net migration from Mexico to the United States has stopped and possibly even reversed. They note that from 2005 to 2010, about 1.4 million Mexicans immigrated to the United States and about 1.4 million Mexican immigrants and their U.S.-born children moved from the United States to Mexico.