"c           VAR 0063      03010 REV NUE 3R 919-956               MD= 1E-37   "
"c           REF 0063         LOC  528 WIDTH  9             DK   9 COL 26-34  "
"c                                                                            "
"c                                                                            "
"c              RAILROAD REVENUE, PASSENGER-MILES, TOTAL                      "
"c              ----------------------------------------                      "
"c                                                                            "
"c              NBER SERIES:  03010                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  MILLIONS OF PASSENGER-MILES                           "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  03/1919-09/1956                            "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  INTERSTATE COMMERCE COMMISSION, DATA FOR 1920-JUNE   "
"c              1921:  STATISTICS OF RAILWAYS IN THE U.S., 1922, P. XCV;      "
"c              DATA FOR JULY 1921-1956:  COMPUTED BY NBER FROM REVENUE       "
"c              TRAFFIC STATISTICS OF CLASS I STEAM RAILROADS -- SERIES       "
"c              03012C (RAILROAD REVENUE, PASSENGER-MILES, COMMUTATION) AND   "
"c              SERIES 03012D (RAILROAD REVENUE PASSENGER-MILES, OTHER THAN   "
"c              COMMUTATION)                                                  "
"c                                                                            "
"c              NOTES:  SINCE ORIGINAL DATA BEGINNING JULY 1921 WERE          "
"c              OBTAINED BY ADDING COMMUTATION AND OTHER THAN COMMUTATION,    "
"c              ROUNDED TO MILLIONS, THE FINAL DIGITS OF OF FIGURES           "
"c              PRESENTED SOMETIMES DIFFER FROM AND ARE LESS ACCURATE THAN    "
"c              THOSE WHICH WOULD BE OBTAINED BY ROUNDING THE TOTAL           "
"c              DIRECTLY.                                                     "
"c                   DATA FOR  1955-1956 ARE SUBJECT TO REVISION.             "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "