Peculiarities of the ethnic component of immigration in the USA in the late 20th and the early 21st centuries

The research analyzes the ethnic component of immigration to the USA that is characterized with the particular intensive growth in the late 20th and the early 21st centuries. The changes in the scope and structure of immigration were caused by the 1965 Immigration and Nationality Act that became the basis for the US immigration policy liberalization. The article studies the immigration flows depending on the region of their origin.