"c           VAR 0069      03012D CLASS  3R 921-948               MD= 1E-37   "
"c           REF 0069         LOC  582 WIDTH  9             DK  10 COL 17-25  "
"c                                                                            "
"c                                                                            "
"c              RAILROAD REVENUE PASSENGER-MILES, OTHER THAN COMMUTATION,     "
"c              CLASS I RAILROADS                                             "
"c              ---------------------------------------------------------     "
"c                                                                            "
"c                                                                            "
"c              NBER SERIES:  03012D                                          "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  MILLIONS OF PASSENGER-MILES                           "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  07/1921-03/1948                            "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  INTERSTATE COMMERCE COMMISSION, REVENUE TRAFFIC      "
"c              STATISTICS OF CLASS I STEAM RAILWAYS                          "
"c                                                                            "
"c              NOTES:  DATA WERE COMPUTED BY SUBTRACTING COMMUTATION         "
"c              PASSENGERS FROM TOTAL PASSENGERS.  PRELIMINARY DATA WERE      "
"c              USED BEGINNING APRIL 1947.                                    "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "