Links 1) https://www.dirksencenter.org/research-collections/everett-m-dirksen/dirksen-record/billion-here-billion-there 2) https://www.whitehouse.gov/omb/historical-tables/ More specifically: https://www.whitehouse.gov/wp-content/uploads/2021/05/hist01z1_fy22.xlsx 3) https://www.statista.com/statistics/183457/united-states--resident-population/