"c           01001 AGGREAGATES                MD= 1E-37   "
"c                                                                            "
"c                                                                            "
"c        INDEX OF THE PHYSICAL VOLUME OF BUSINESS ACTIVITY, BABSON  "
"c              -------------------------------------------                   "
"c                                                                            "
"c                                                                            "
"c              NBER SERIES:  01001                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:                              "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  01/1889-09/1957                            "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE: "BABSONCHART INDEX OF PHYSICAL VOLUME OF BUSINESS"    "
"c              APRIL 26,1961 (UNPUBLISHED)                                   "
"c             "BUSINESS STATISTICS ORGANIZATION INC. BABSON PARK, MA         "
"c                                                                            "
"c              NOTES:THROUGH 1937 THESE DATA REPRESENT THE EARLIER INDEX     "
"c              WITH BASE SHIFTED TO 1947-1949 AVERAGE; FROM 1938 ON THE INDEX"
"c              WAS REVISED ; FIGURES ARE CONTINUOUS THROUGHOUT THE PERIOD   "
"c              SERIES AVAILABLE ON THIS BASE FROM 1870 ON   "
"c           ...............................................................  "