Silver Book Fact
90+ population between 1980 and 2010
The 720,000 people aged 90 and over in 1980 almost tripled to 1.9 million in 2010.
He W, Muenchrath N. 90+ in the United States: 2006-2008. Washington, DC: US Census Bureau; 2011. https://www.census.gov/library/publications/2011/acs/acs-17.html