"c VAR 0725 XXXXX LOCOMOT 3R 920-943 MD= 1E-37 " "c REF 0725 LOC 2697 WIDTH 9 DK 43 COL 53-61 " "c " "c " "c SERVICEABLE LOCOMOTIVES ASSIGNED TO FREIGHT SERVICE, CLASS I " "c RAILROADS " "c ------------------------------------------------------------ " "c " "c NBER SERIES: 01251 " "c AREA COVERED: U.S. " "c UNITS: NUMBER OF LOCOMOTIVES " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 01/1920-08/1943 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: 1920-1934 DATA ARE FROM INTERSTATE COMMERCE " "c COMMISSION, FREIGHT AND PASSENGER SERVICE OPERATING " "c STATISTICS OF CLASS I STEAM RAILWAYS IN THE UNITED STATES; " "c 1935-1943 DATA ARE FROM ICC, MOTIVE POWER AND CAR EQUIPMENT " "c OF CLASS I STEAM RAILWAYS IN THE UNITED STATES. " "c " "c NOTES: DAILY AVERAGES ARE USED THROUGH JANUARY 1935. " "c THEREAFTER, MIDMONTH FIGURES WERE COMPUTED BASED ON END OF " "c MONTH DATA. " "c NEW YORK CENTRAL FIGURES ARE NOT AVAILABLE, 02-12/1920; " "c MISSOURI-PACIFIC FIGURES ARE NOT AVAILABLE, 02-03/1920; " "c FORT SMITH AND WESTERN ARE NOT AVAILABLE, 03/1920. " "c BEGINNING WITH 1935, DATA WERE COMPUTED BY NBER BY " "c SUMMING"NUMBER SERVICEABLE (NOT STORED)" AND "NUMBER " "c SERVICEABLE (STORED)." " "c SWITCHING AND TERMINAL COMPANIES ARE EXCLUDED THROUGH " "c DECEMBER 1936. THEY ARE INCLUDED THEREAFTER BEGINNING IN " "c FEBRUARY 1937. THE JANUARY 1937 FIGURE IS THE AVERAGE OF " "c THE 12/1936 AND 02/1937 FIGURES. " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "