Source: U.S. Bureau of Economic Analysis
Release: Gross Domestic Product
BEA Account Code: DPSTRC
For more information about this series, please see http://www.bea.gov/national/."
U.S. Bureau of Economic Analysis, Personal consumption expenditures: Communication: First-class postal service by U.S. Postal Service (USPS) [DPSTRC1A027NBEA], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/DPSTRC1A027NBEA, June 22, 2018.