Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Index 1935-1939=100, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Three Variables--(1)--Original Data, 1855-1937 (2)--Original Data, 1918-1957 (3)--Original Data, 1949-1964. Figures Are For 20 Railroad Stocks. Source: 1918-1940 Data Are From Standard And Poor'S Corporation, Long Term Security Price Index Record (Through December 31, 1940) Pp.9-10; 1941-1942 Data Are From The Security Price Index Record, 1941 And 1942; 1943-1946 Data Are From Current Statistics Combined With Basic Statistics Annually; 1947 Data Are From Current Statistics; 1948-1957 Data Are From The Survey Of Current Business.

This NBER data series m11005b appears on the NBER website in Chapter 11 at http://www.nber.org/databases/macrohistory/contents/chapter11.html.

NBER Indicator: m11005b