"c           VAR 0073      03041 CAR LAD 3R 918-943               MD= 1E-37   "
"c           REF 0073         LOC  618 WIDTH  9             DK  10 COL 53-61  "
"c                                                                            "
"c                                                                            "
"c              FREIGHT CAR-MILES, LOADED                                     "
"c              -------------------------                                     "
"c                                                                            "
"c              NBER SERIES:  03041                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  MILLIONS OF CAR-MILES                                 "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  01/1918-08/1943                            "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  DATA FOR 1918-1919 WERE COMPUTED BY NBER; ALL OTHER  "
"c              DATA ARE FROM THE INTERSTATE COMMERCE COMMISSION, DATA FOR    "
"c              1920-1934: "FREIGHT AND PASSENGER SERVICE OPERATING           "
"c              STATISTICS OF CLASS I STEAM RAILWAYS IN THE UNITED STATES;    "
"c              DATA FOR 1935-1943: "FREIGHT TRAIN PERFORMANCE OF CLASS I     "
"c              STEAM RAILWAYS IN THE UNITED STATES".                         "
"c                                                                            "
"c              NOTES:  SWITHCING AND TERMINAL COMPANIES ARE EXCLUDED.        "
"c                   DATA FOR 1918-1919 WERE COMPUTED BY NBER BY DIVIDING     "
"c              SERIES 03001 (REVENUE AND NON-REVENUE FREIGHT TON MILES) BY   "
"c              SERIES 03002A (AVERAGE LOAD PER FREIGHT CAR).  THE            "
"c              UNADJUSTED FIGURE FOR JANUARY 1920 WAS DERIVED BY             "
"c              SUBTRACTING FEBRUARY FIGURE FROM A CUMULATIVE TWO-MONTH       "
"c              TOTAL.                                                        "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "