Source: U.S. Bureau of Economic Analysis
Release: U.S. International Transactions
This series has been discontinued as a result of the comprehensive restructuring of the international economic accounts (http://www.bea.gov/international/modern.htm). For a crosswalk of the old and new series in FRED see: http://research.stlouisfed.org/CompRevisionReleaseID49.xlsx.
U.S. Bureau of Economic Analysis, Foreign Official Assets: Other U.S. Government Securities (DISCONTINUED) [BOPIOGON], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/BOPIOGON, April 26, 2018.