@techreport{US Census Bureau2020,
author = {US Census Bureau},
title= {Annual county resident population estimates by age, sex, race, and Hispanic origin: April 1, 2010 to July 1, 2019 },
year = {2020},
URL = {https://www.census.gov/newsroom/press-kits/2020/population-estimates-detailed.html},
publisher = {United States Census Bureau},
}