"c VAR 0785 01140 ORE MEN 3R 923-941 MD= 1E-37 " "c REF 0785 LOC 3237 WIDTH 9 DK 52 COL 26-34 " "c " "c " "c LEAD ORE SHIPMENTS " "c ------------------ " "c " "c NBER SERIES: 01140 " "c AREA COVERED: U.S.-- JOPLIN DISTRICT " "c UNITS: SHORT TONS PER WEEK " "c ANNUAL COVERAGE: NONE " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: 01/1923-12/1941 " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: U.S. DEPARTMENT OF COMMERCE, SURVEY OF CURRENT " "c BUSINESS, 1932 ANNUAL SUPPLEMENT AND SUCCESSIVE ISSUES. " "c " "c NOTES: SERIES 01140 IS PRESENTED HERE AS TWO " "c VARIABLES--(1)--ORIGINAL DATA, 1895-1928 (2)--ORIGINAL DATA, " "c 1923-1941. " "c THE JOPLIN DISTRICT, SOMETIMES CALLED THE TRI-STATE " "c DISTRICT, INCLUDES PARTS OF MISSOURI, KANSAS, AND OKLAHOMA. " "c DATA GIVEN AS MONTHLY TOTALS, PRIOR TO 1936, WERE " "c REDUCED BY NBER TO WEEKLY AVERAGES BY DIVIDING BY THE NUMBER " "c OF WEEKS ENDING ON SATURDAY WITHIN THE MONTH; BEGINNING IN " "c JANUARY 1936, BY DIVIDING BY THE NUMBER OF WEEKS ENDING ON " "c SATURDAY WHICH END THROUGH THE THIRD OF THE NEXT MONTH (SEE " "c SCB, 1940 ANNUAL SUPPLEMENT, P.222, NOTE 4). " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c ............................................................... "