Consumer Price Index for All Urban Consumers: All Items, seasonally adjusted (CPIAUCSL), FRED, Federal Reserve Bank of St. Louis, https://fred.stlouisfed.org/series/CPIAUCSL, Dec 1959 – Sep 2026, downloaded 15 Oct 2026.
3-Month Treasury Bill Secondary Market Rate, monthly average (TB3MS), FRED, Federal Reserve Bank of St. Louis, https://fred.stlouisfed.org/series/TB3MS, Dec 1959 – Sep 2026, downloaded 15 Oct 2026.
