Name: Sectoral Output Price Deflator for Professional, Scientific, and Technical Services: Advertising Agencies (NAICS 54181) in the United States data
Creator: FRED
License: https://macrobymark.com/about/terms-of-use#data-providers

Sectoral Output Price Deflator for Professional, Scientific, and Technical Services: Advertising Agencies (NAICS 54181) in the United States data | Macro by Mark