"c           VAR 0104      03056 RE VICE 3R 920-943               MD= 1E-37   "
"c           REF 0104         LOC  897 WIDTH  9             DK  15 COL 17-25  "
"c                                                 EXP DEC=  2                "
"c                                                                            "
"c              REVENUE TON-MILES PER SERVICEABLE FREIGHT CAR, CLASS I        "
"c              RAILROADS                                                     "
"c              ------------------------------------------------------        "
"c                                                                            "
"c              NBER SERIES:  03056                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  THOUSANDS OF REVENUE TON-MILES                        "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  01/1920-03/1943, 06-08/1943                "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  COMPUTED BY NBER BY DIVIDING SERIES 03003 (REVENUE   "
"c              TON-MILES) BY SERIES 01254 (SERVICEABLE FREIGHT CARS); BOTH   "
"c              SERIES ARE BASED ON INTERSTATE COMMERCE COMMISSION SOURCES.   "
"c                                                                            "
"c                                                                            "
"c              NOTES:  SERIES 01254 (SERVICEABLE FREIGHT CARS) INCLUDES      "
"c              SWITCHING AND TERMINAL COMPANIES FROM FEBRUARY 1937 ON.       "
"c              SERIES 03003 (REVENUE TON-MILIES) EXCLUDES THESE TRHOUGHOUT.  "
"c                   DATA FOR SERIES 01254 FROM 1920-JANUARY 1935 ARE BASED   "
"c              ON DAILY AVERAGES; DATA FROM FEBRUARY 1935-1943 ARE BASED ON  "
"c              FIRST OF THE MONTH DATA, THE PUBLISHED END-OF-MONTH FIGURES   "
"c              BEING PLACED FORWARD ONE MONTH, CENTERED BY A MOVING AVERAGE  "
"c              ON THE SECOND MONTH.                                          "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "