Inmigration to the USA

Immigration to the United States has been a major source of population growth and cultural change throughout much of the history of the United States. The economic, social, and political aspects of immigration have caused controversy regarding ethnicity, economic benefits, jobs for non-immigrants, settlement patterns, impact on upward social mobility, crime, and voting behavior. As of 2006, the United States accepts more legal immigrants as permanent residents than all other countries in the world combined. Since the removal of ethnic quotas in immigration in 1965,the number of first- generation immigrants living in the United States has quadrupled, from 9.6 million in 1970 to about 38 million in 2007. 1,046,539 persons were naturalized as U.S. citizens in 2008. The leading emigrating countries to the United States were Mexico, India, the Philippines, and China. Nearly 14 million immigrants came to the United States from 2000 to 2010.