Question: Many immigrants move to the united states each year. where do most immigrants come from today?

Disambiguated questions and answers:
context: Approximately half of immigrants living in the United States are from Mexico and other Latin American countries. Many Central Americans are fleeing because of desperate social and economic circumstances created in part by U.S. foreign policy in Central America over many decades. The large number of Central American refugees arriving in the U.S. have been explained as "blowback" to policies such as U.S. military interventions and covert operations that installed or maintained in power authoritarian leaders allied with wealthy land owners and multinational corporations who crush family farming and democratic efforts, which have caused drastically sharp social inequality, wide scale poverty and rampant crime. Economic austerity dictated by neoliberal policies imposed by the International Monetary Fund and its ally, the U.S., has also been cited as a driver of the dire social and economic conditions, as has the U.S. "War on Drugs," which has been understood as fueling murderous gang violence in the region. “The current debate … is almost totally about what to do about immigrants when they get here. But the 800-pound gorilla that’s missing from the table is what we have been doing there that brings them here, that drives them here," according to Jeff Faux, an economist who is a distinguished fellow at the Economic Policy Institute.
question: Many immigrants move to the united states each year. Which country do most immigrants come from in 2017?
short_answers: Mexico
wikipage: Immigration to the United States

context: Approximately half of immigrants living in the United States are from Mexico and other Latin American countries. Many Central Americans are fleeing because of desperate social and economic circumstances created in part by U.S. foreign policy in Central America over many decades. The large number of Central American refugees arriving in the U.S. have been explained as "blowback" to policies such as U.S. military interventions and covert operations that installed or maintained in power authoritarian leaders allied with wealthy land owners and multinational corporations who crush family farming and democratic efforts, which have caused drastically sharp social inequality, wide scale poverty and rampant crime. Economic austerity dictated by neoliberal policies imposed by the International Monetary Fund and its ally, the U.S., has also been cited as a driver of the dire social and economic conditions, as has the U.S. "War on Drugs," which has been understood as fueling murderous gang violence in the region. “The current debate … is almost totally about what to do about immigrants when they get here. But the 800-pound gorilla that’s missing from the table is what we have been doing there that brings them here, that drives them here," according to Jeff Faux, an economist who is a distinguished fellow at the Economic Policy Institute.
question: Many immigrants move to the united states each year. Which country do most immigrants come from in 2016?
short_answers: Mexico
wikipage: Immigration to the United States

context: Approximately half of immigrants living in the United States are from Mexico and other Latin American countries. Many Central Americans are fleeing because of desperate social and economic circumstances created in part by U.S. foreign policy in Central America over many decades. The large number of Central American refugees arriving in the U.S. have been explained as "blowback" to policies such as U.S. military interventions and covert operations that installed or maintained in power authoritarian leaders allied with wealthy land owners and multinational corporations who crush family farming and democratic efforts, which have caused drastically sharp social inequality, wide scale poverty and rampant crime. Economic austerity dictated by neoliberal policies imposed by the International Monetary Fund and its ally, the U.S., has also been cited as a driver of the dire social and economic conditions, as has the U.S. "War on Drugs," which has been understood as fueling murderous gang violence in the region. “The current debate … is almost totally about what to do about immigrants when they get here. But the 800-pound gorilla that’s missing from the table is what we have been doing there that brings them here, that drives them here," according to Jeff Faux, an economist who is a distinguished fellow at the Economic Policy Institute.
question: Many immigrants move to the united states each year. Which country do most immigrants come from in 2015?
short_answers: Mexico
wikipage: Immigration to the United States

Long answers:
knowledge: content: Immigration to the United States is the international movement of non-U.S. nationals to reside permanently in the country.[1] Immigration has been a major source of population growth and cultural change throughout much of the U.S. history.
wikipage: Immigration to the United States

content: Between 1921 and 1965, policies such as the national origins formula limited immigration and naturalization opportunities for people from areas outside Western Europe. Exclusion laws enacted as early as the 1880s generally prohibited or severely restricted immigration from Asia, and quota laws enacted in the 1920s curtailed Eastern European immigration. The civil rights movement led to the replacement[8] of these ethnic quotas with per-country limits for family-sponsored and employment-based preference visas.[9] Since then, the number of first-generation immigrants living in the United States has quadrupled.
wikipage: Immigration to the United States
long_answer: Immigration to the United States is the international movement of non-US nationals to reside permanently in the United States. Between 1921 and 1956, policies were made that limited the number of people allowed to immigrate to the US from areas outside Western Europe. Later, the civil rights movement led to changes in immigration policies, the results of which can be seen today. During 2015, 2016, and 2017, most of the immigrants entering the US came from Mexico and other Latin American countries.