Unadjusted flow from BEA, BOP, Table 1 U.S. International Transactions, line 55, Foreign assets in the United States, excluding financial derivatives. Fourth-quarter level from BEA, IIP, Table 2, line 26, Foreign-owned assets in the United States, excluding financial derivatives. Level for other quarters is obtained by adding flow to preceding level; seasonally adjusted flow is obtained using X-12-ARIMA procedure.