(+)numbers mean purchases of USD, (-) numbers mean sales of USD. Unpublished data.
Release: U.S. Foreign Exchange Intervention
Board of Governors of the Federal Reserve System (US), U.S. Intervention: In Market Transactions in the DEM/USD (Euro since 1999) (Millions of USD) [USINTDMRKTDM], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/USINTDMRKTDM/, September 4, 2015.