Source: U.S. Census Bureau
Release: Quarterly Financial Report
Further information related to the Quarterly Financial Report survey can be found at https://www.census.gov/econ/qfr/about.html
Methodology details can be found at https://www.census.gov/econ/qfr/documents/QFR_Methodology.pdf
U.S. Census Bureau, Quarterly Financial Report: U.S. Corporations: Accumulated Depreciation, Depletion, and Amortization: All Professional and Technical Services, Except Legal Services: All Other Professional and Technical Services, Except Legal Services Industry [QFR218549USNO], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/QFR218549USNO, August 22, 2019.