"c VAR 0154 03036 PER PER 3R 921-942 MD= 1E-37 " "c REF 0154 LOC 1347 WIDTH 9 DK 22 COL 26-34 " "c EXP DEC= 1 " "c " "c MILES PER REVENUE PASSENGER PER ROAD, NON-COMMUTATION, CLASS " "c I RAILROADS " "c ------------------------------------------------------------ " "c " "c NBER SERIES: 03036 " "c AREA COVERED: U.S. " "c UNITS: MILES " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 07/1921-12/1942 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: INTERSTATE COMMERCE COMMISSION,"REVENUE TRAFFIC " "c STATISTICS OF CLASS I STEAM RAILWAYS IN THE UNITED STATES". " "c " "c CHECKED MANUALLY; CORRECTED 1/15/94. " "c " "c ............................................................... "