Data Are For General Imports Through 1933 And Imports For Consumption Thereafter. Source: Survey Of Current Business, July, 1951, Pp. 27-28 For 1929- 1949 Data; Quarterly Summary Of Foreign Commerce Thereafter.
This NBER data series m04197 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html.
NBER Indicator: m04197
Release: NBER Macrohistory Database
National Bureau of Economic Research, Price Index of Imports For Consumption for United States [M04197USM345NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M04197USM345NNBR/, November 28, 2015.