Silver Book Fact
Life expectancy at 90 years of age
Today a person 90 years of age is expected to live on average another 4.6 years (versus 3.2 years in 1929–1931), and those who pass the century mark are projected to live another 2.3 years.
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