
Given the following passage

"As of 2000[update], children and teenagers (0–19 years old) make up 15.1% of the population, while adults (20–64 years old) make up 65% and seniors (over 64 years old) make up 19.9%.",

answer the following question. Note that the answer is present within the text.

Question: Which age group had the largest population in 2000? 

adults (20–64 years old)
