"c VAR 0193 01193 IRONPRO 1A 911-939 MD= 1E-37 " "c REF 0193 LOC 1698 WIDTH 9 DK 27 COL 62-70 " "c EXP DEC= 2 " "c " "c IRON ORE PRODUCTION, TOTAL " "c -------------------------- " "c " "c NBER SERIES: 01193 " "c AREA COVERED: U.S. " "c UNITS: MILLIONS OF LONG-TONS " "c ANNUAL COVERAGE: 1911-1939 " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: NONE " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: U.S. BUREAU OF THE MINES, MINERAL RESOURCES. " "c " "c NOTES: SERIES 01193 IS PRESENTED HERE AS TWO " "c VARIABLES--(1)--ORIGINAL DATA, 1889-1915 (2)--ORIGINAL " "c DATA, 1911-1939. " "c DATA EXCLUDE ORE CONTAINING FIVE PERCENT OR MORE " "c MANGANESE. " "c " "c NOT CHECKED AGAINST ORIGINALS. " "c " "c ............................................................... "