Data Are Quarterly Totals. Source: U.S. Department Of Commerce, Handbook On American Underwriting Of Foreign Securities, 1930
This NBER data series q10067 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html.
NBER Indicator: q10067
Release: NBER Macrohistory Database
National Bureau of Economic Research, Foreign Bond Issues, Government and Government Guaranteed Or Controlled for United States [Q10067USQ144NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/Q10067USQ144NNBR, February 8, 2016.