Series Is Presented Here As Two Variables--(1)--Original Data, 1913-1933 (2)--Original Data, 1928-1951. Original Data Were All Compiled By The Electrical World, But Were Adjusted To 100 Percent By The Scb Until Source: Data For 1913-October 1922: Survey Of Current Business, July 1923, P. 45. Data For November 1922-1933: Electrical World.
This NBER data series m01129a appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html.
NBER Indicator: m01129a
Release: NBER Macrohistory Database
National Bureau of Economic Research, Electrical Energy Distributed, Gross Revenue From Central Revenue Sales for United States [M0129AUSM311NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/M0129AUSM311NNBR/, September 2, 2015.