"c VAR 0056 09047 NET RR 3R 917-942 MD= 1E-37 " "c REF 0056 LOC 465 WIDTH 9 DK 8 COL 26-34 " "c EXP DEC= 1 " "c " "c RATIO OF NET RAILROAD OPERATING INCOME TO TOTAL OPERATING " "c REVENUES, CLASS I RAILROADS, INTERSTATE COMMERCE COMMISSION. " "c ------------------------------------------------------------ " "c " "c NBER SERIES: 09047 " "c AREA COVERED: U.S. " "c UNITS: PERCENTAGE " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 01/1907-12/1942 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: INTERSTATE COMMERCE COMMISSION"OPERATING REVENUES " "c AND EXPENSES OF LARGE STEAM ROADS IN THE U.S.: JULY, 1914 TO " "c DECEMBER, 1919" FOR 1917-1919 DATA;"OPERATING REVENUES AND " "c OPERATING EXPENSES OF CLASS I STEAM RAILWAYS IN THE U.S." " "c FOR 1920-1942 DATA (SEE NOTE BELOW). " "c " "c NOTES: THESE DATA WERE COMPUTED BY NBER FROM FIGURES GIVEN " "c IN THE SOURCES. " "c SWITCHING AND TERMINAL COMPANIES ARE INCLUDED FOR " "c 1917-1931. " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "