"c           VAR 0014      12004 IND PRO 3S 917-961               MD= 1E-37   "
"c           REF 0014         LOC   87 WIDTH  9             DK   2 COL 26-34  "
"c                                                 EXP DEC=  1                "
"c                                                                            "
"c              INDEX OF INDUSTRIAL PRODUCTION AND TRADE, SEASONALLY          "
"c              ADJUSTED                                                      "
"c              ----------------------------------------------------          "
"c                                                                            "
"c              NBER SERIES:  12004                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  NORMAL=100                                            "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  01/1916-3/1916, 01-1917-10/1961            "
"c              SEASONAL ADJUSTMENT:  SEASONALLY ADJUSTED BY NBER             "
"c              SOURCE:  1916-1918 DATA WERE COMPUTED BY NBER (SEE NOTE       "
"c              BELOW); 1919-1940 DATA ARE FROM EDWIN FRICHEY, BARRON'S       "
"c              INDEX OF BUSINESS SINCE 1899 (NEW YORK, BARRON'S PUBLISHING   "
"c              COMPANY, 1943);1941-1945 DATA ARE FROM BARRON'S DECEMBER 13,  "
"c              1943 ISSUE AND FOLLOWING ISSUES; 1946 DATA WERE OBTAINED      "
"c              DIRECT FROM BARRON'S;  THEREAFTER DATA FURNISHED BY WEEKLY    "
"c              ISSUES OF BARRON'S NATIONAL BUSINESS AND FINANCIAL WEEKLY.    "
"c              SMALL REVISIONS FROM 1949 OBTAINED DIRECTLY FROM BARRON'S     "
"c              (BOSTON, MASSACHUSETTS), JUNE 1956.                           "
"c                                                                            "
"c              NOTES: SERIES 12004 IS PRESENTED HERE AS THREE                "
"c              VARIABLES--(1)--SEASONALLY ADJUSTED DATA, 1875-1915           "
"c              (2)--SEASONALLY ADJUSTED DATA, 1915-1919 (3)--SEASONALLY      "
"c              ADJUSTED DATA, 1916-1961.                                     "
"c                   BEGINNING WITH DECEMBER 1959, THE DATA ARE OPEN TO       "
"c              REVISION.                                                     "
"c                   1916-1918 DATA WERE COMPUTED BY NBER BY LOWERING         "
"c              FIGURES FROM THE PREVIOUS SEGMENT OF THIS SERIES TO THE       "
"c              LEVEL OF THIS SEGMENT BY THE RATIO OF 0.962 OF THE OVERLAP    "
"c              PERIOD, 1919.                                                 "
"c                   AFTER OCTOBER 1961, THE DATA WERE NO LONGER PUBLISHED    "
"c              ON A MONTHLY BASIS.  A WEEKLY INDEX SHOWN IN BARRON'S IS NOT  "
"c              COMPARABLE.                                                   "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c                                                                            "