Incoming immigration to the US

The US has more international migrants than any other country. "It is home to about one-in-five international migrants (46.6 million). Other top destinations of migrants include Germany (12.0 million), Russia (11.6 million), Saudi Arabia (10.2 million) and the United Kingdom (8.5 million)" (Connor, 2016).

Explore https://www.pewresearch.org/global/interactives/global-migrant-stocks-map/ and compare the top three nations from which people immigrated to the US in 1990, 2000, 2010, and 2017. What can you infer from this information?