SQGDP1 Footnotes

1. Real GDP is in millions of chained 2017 dollars. Calculations are performed on unrounded data. Chained (2017) dollar series are calculated as the product of the chain-type quantity index and the 2017 current-dollar value of the corresponding series, divided by 100. Because the formula for the chain-type quantity indexes uses weights of more than one period, the corresponding chained-dollar estimates are usually not additive. For the All industry total and Government and government enterprises, the difference between the United States and sum-of-states reflects overseas activity, economic activity taking place outside the borders of the United States by the military and associated federal civilian support staff.
Last updated: September 30, 2026-- new statistics for 2026:Q2; revised statistics for 2018:Q1-2026:Q1.