"c VAR 0033 03003 RAI ROA 3R 920-960 MD= 1E-37 " "c REF 0033 LOC 258 WIDTH 9 DK 4 COL 71-79 " "c EXP DEC= 3 " "c " "c RAILROAD FREIGHT TON-MILES, REVENUE " "c ----------------------------------- " "c " "c NBER SERIES: 03003 " "c AREA COVERED: U.S. " "c UNITS: BILLIONS OF TON-MILES " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: FIRST,1960 - FOURTH,1963 " "c MONTHLY COVERAGE: 01/1920-12/1960; " "c 02,05,08,11/1961,1962,1963 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: INTERSTATE COMMERCE COMMISSION,"REVENUE TRAFFIC " "c STATISTICS OF CLASS I STEAM RAILWAYS IN THE UNITED STATES" " "c " "c NOTES: SERIES 03003 IS PRESENTED HERE AS TWO " "c VARIABLES--(1)--SEASONALLY ADJUSTED DATA, 1866-1922 " "c (2)--ORIGINAL DATA, 1920-1963. " "c DATA FOR 1907-1914 AND 1916-1924 ARE IDENTICAL TO THE " "c DATA IN SERIES 03001 AND COULD BE CONSIDERED ADDITIONAL " "c VARIABLE SEGMENTS. " "c DATA EXCLUDE SWITCHING AND TERMINAL COMPANIES. " "c A COAL STRIKE ACCOUNTED FOR THE MARKED DECREASE IN " "c APRIL 1941. " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c " -4 1960.1 1963.4 144.379 149.677 140.135 138.015 128.899 140.391 144.787 148.918 143.787 150.898 146.365 150.637 144.340 161.503 154.835 160.265