Conversation so far:
what percent of the us population lives in new york city?
2.6%  of the US population lives in New York City
how many people live in New York City?
an estimated 8,491,079 people living in the city
how many people living in New York City are foreign born?
About 36% of the city's population is foreign-born
from what countries do foreign born people living in New York City come from?
The nations constituting the largest sources of immigration are the Dominican Republic, China, Jamaica, Guyana, Mexico, Ecuador, Brazil, Haiti, Trinidad and Tobago, Colombia, Russia and El Salvador.

Question: what are the largest ethnic groups?
Self-contained rewrite: what are the largest ethnic groups in New York City?