Data For July 1938 On Are Subject To Revision. Source: Director Generale Des Douanes, "Documents Statistique Sur Le Commerce De La France, 1921/1923; Name Then Changes To"Statiste Que Mensuelle Du Commerce Extexieur De Ca France".
This NBER data series m03026 appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.
NBER Indicator: m03026
Release: NBER Macrohistory Database
National Bureau of Economic Research, Vessels Cleared for France [M03026FRM561NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M03026FRM561NNBR/, June 3, 2015.