"c           VAR 0171      03016B OPERA  3R 907-956               MD= 1E-37   "
"c           REF 0171         LOC 1500 WIDTH  9             DK  24 COL 53-61  "
"c                                                 EXP DEC=  1                "
"c                                                                            "
"c              OPERATING REVENUES OF RAILROADS, FREIGHT                      "
"c              ----------------------------------------                      "
"c                                                                            "
"c              NBER SERIES:  03016B                                          "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  MILLIONS OF DOLLARS                                   "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  07/1907-07/1956                            "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  INTERSTATE COMMERCE COMMISSION, BUREAU OF            "
"c              STATISTICS, DATA FOR 1907-JUNE 1914:  BULLETIN OF REVENUES    "
"c              AND EXPENSES OF STEAM ROADS IN THE UNITED STATES, NO. 5, P.   "
"c              12; NO. 18, P. 12; NO. 31, P. 12; NOS. 32-69.  DATA FOR JULY  "
"c              1914-1919: "OPERATING REVENUES AND EXPENSES OF LARGE STEAM    "
"c              RAILROADS, JULY 1914-DECEMBER 1919".  DATA FOR 1920-1956:     "
"c             "OPERATING REVENUES AND OPERATING EXPENSES OF CLASS I STEAM    "
"c              RAILWAYS IN THE UNITED STATES", MONTHLY.                      "
"c                                                                            "
"c              NOTES:  DATA FOR CLASS I RAILWAYS EXCLUDES SWITCHING AND      "
"c              TERMINAL COMPANIES FROM 1907-OCTOBER 1910; THEREAFTER THEY    "
"c              ARE INCLUDED.                                                 "
"c                   DATA FOR 1907-OCTOBER 1910 COVER CLASS A RAILROADS       "
"c              WHICH INCLUDE LARGE ROADS -- ROADS OPERATING A MILEAGE IN     "
"c              EXCESS OF 250 MILES OR HAVING ANNUAL OPERATING REVENUES OF    "
"c              MORE THAN ONE MILLION DOLLARS.  INCLUDED IN THIS CLASS,       "
"c              HOWEVER, ARE SMALL ROADS SUBJECT TO CONTROL, DIRECT OR        "
"c              INDIRECT, OF LARGE ROADS AS DEFINED HERE.                     "
"c                   IN NOVEMBER 1910 THERE OCCURRED A CHANGE IN              "
"c              CLASSIFICATION -- CLASS I RAILROADS ARE ALL STEAM RAILWAY     "
"c              COMPANIES WHOSE OPERATING REVENUES EXCEEDED ONE MILLION       "
"c              DOLLARS.  THESE DATA ARE NOT STRICTILY COMPARABLE WITH        "
"c              PREVIOUS FIGURES.                                             "
"c                   REVISED DATA WHEN PROVIDED HAVE BEEN USED, WITH THE      "
"c              EXCEPTIONS OF JULY-OCTOBER 1910 AND JANUARY 1913-JUNE 1914.   "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "