"c VAR 0032 03003 RAI ROA 3S 866-922 MD= 1E-37 " "c REF 0032 LOC 249 WIDTH 9 DK 4 COL 62-70 " "c EXP DEC= 2 " "c " "c RAILROAD FREIGHT TON-MILES, REVENUE, SEASONALLY ADJUSTED " "c -------------------------------------------------------- " "c " "c NBER SERIES: 03003 " "c AREA COVERED: U.S. " "c UNITS: BILLIONS OF TON-MILES " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 08/1866-12/1922 " "c SEASONAL ADJUSTMENT: SEASONALLY ADJUSTED BY SOURCE " "c SOURCE: BABSON STATISTICAL ORGANIZATION, INC. " "c " "c NOTES: 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 AT LEAST UNTIL 1909 ARE BASED ON A TWO MONTH " "c MOVING AVERAGE PLACED IN THE SECOND MONTH. " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "