"c VAR 0729 XXXXX LOCOMOT 3R 920-942 MD= 1E-37 " "c REF 0729 LOC 2733 WIDTH 9 DK 44 COL 26-34 " "c EXP DEC= 1 " "c " "c PER CENT SERVICEABLE OF TOTAL FREIGHT LOCOMOTIVES, CLASS I " "c RAILROADS " "c ---------------------------------------------------------- " "c " "c NBER SERIES: 01252 " "c AREA COVERED: U.S. " "c UNITS: PER CENT " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 02/1920-04/1942 " "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: COMPUTED BY NBER FROM"PER CENT UNSERVICEABLE " "c FIGURES BY SUBTRACTING THEM FROM 100. " "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. 1920-1934 " "c DATA ARE DAILY AVERAGES. 1935-1942 DATA ARE MIDMONTH " "c COMPUTED BY NBER FROM END OF MONTH DATA. " "c BEGINNING WITH 1935, DATA WERE COMPUTED BY NBER BY " "c SUMMING"NUMBER SERVICEABLE (NOT STORED)" AND "NUMBER " "c SERVICEABLE (STORED)" AND USING FIGURES OF SERIES 01250 AND " "c 01251. " "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 THERE WAS A STRIKE BY EQUIPMENT MAINTENANCE WORKERS " "c FROM JULY-SEPTEMBER 1922. " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "