"c           VAR 0030      03001 NON NET 3R 907-943               MD= 1E-37   "
"c           REF 0030         LOC  231 WIDTH  9             DK   4 COL 44-52  "
"c                                                 EXP DEC=  1                "
"c                                                                            "
"c              REVENUE AND NON-REVENUE NET TON-MILES OF FREIGHT HAULED       "
"c              -------------------------------------------------------       "
"c                                                                            "
"c              NBER SERIES:  03001                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  BILLIONS OF TON-MILES                                 "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  04/1907-06/1914; 04/1916-07/1942;          "
"c              10/1942-08/1943                                               "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  DATA FOR 1907-1914:  AMERICAN RAILWAY ASSOCIATION,   "
"c              PROCEEDINGS, MAY 1914, PP. 525FF.; NOVEMBER 1914, P. 745;     "
"c              DATA FOR 1916-1943:  U.S. DEPARTMENT OF COMMERCE, SURVEY OF   "
"c              CURRENT BUSINESS, DECEMBER 1923, P. 52; ANNUAL SUPPLEMENTS    "
"c              OF 1932, 1936, 1938, 1940; FOLLOWING MONTHLY ISSUES           "
"c                                                                            "
"c              NOTES:  DATA IN THIS SERIES IS IDENTICAL TO DATA IN SERIES    "
"c              03003 FOR THE YEARS 1907-1914 AND 1916-1924.                  "
"c                   DATA MAY BE CHECKED WITH THE FOLLOWING INTERSTATE        "
"c              COMMERCE COMMISSION ORIGINAL SOURCES -- DATA FOR 1918-1922:   "
"c              STATISTICS OF RAILWAYS, 1922; DATA FOR 1920-1934: "FREIGHT    "
"c              AND PASSENGER SERVICE OPERATING STATISTICS OF CLASS I STEAM   "
"c              RAILWAYS IN THE UNITED STATES," A MONTHLY PUBLICATION; DATA   "
"c              FOR 1935-1942: "FREIGHT TRAIN PERFORMANCE OF CLASS I STEAM    "
"c              RAILWAYS IN THE UNITED STATES," A MONTHLY PUBLICATION.        "
"c              HOWEVER, SOME DATA HAVE BEEN REVISED BY THE SCB AND           "
"c              THEREFORE WILL NOT ALWAYS AGREE WITH THE ORIGINAL SOURCE.     "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "