Question: How many citizens are there in the us?
qaPairs: question: How many citizens are there in the us, estimated as of January 28, 2020?
answer: 329,227,746
question: How many citizens are there in the us as of the 2010 census?
answer: 308,745,538
question: How many citizens are there in the us as of the 2000 census?
answer: 281,421,906
question: How many citizens are there in the us as of the 1990 census?
answer: 248,709,873