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1172. Net U.S. Imports of Selected Nonfuel Minerals and Metals as Percent of Apparent Consumption

[In percent. Based on net imports which equal the difference between imports and exports plus or minus government stockpile and industry stock changes]

 
        Mineral 1980 1985 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
 
Bauxite 1................................................... 94 96 97 96 98 100 100 100 99 99 100 100 100 100
Columbium................................................... 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Manganese................................................... 98 100 100 100 100 100 100 100 100 100 100 100 100 100
Mica (sheet)................................................... 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Strontium................................................... 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Tin................................................... 79 72 78 77 71 74 80 84 83 84 83 86 85 85
Barite................................................... 44 74 76 77 71 66 52 72 64 65 70 76 80 67
Cobalt................................................... 93 94 87 83 86 86 85 85 80 79 76 76 73 73
Potash................................................... 65 76 71 65 68 69 68 72 76 75 77 80 80 80
Tantalum................................................... 90 89 86 86 71 73 73 81 75 80 80 75 80 80
Tungsten................................................... 53 68 86 84 81 91 86 81 95 90 89 84 77 81
Chromium................................................... 91 75 78 78 84 80 76 79 81 80 79 75 80 80
Nickel................................................... 76 71 74 71 64 61 59 63 64 60 59 56 64 63
Titanium................................................... 32 (D) (D) (D) (3) (D) (D) (D) (D) 64 50 63 49 (NA)
Zinc 2................................................... 60 70 69 61 41 24 33 36 35 35 33 35 35 30
Aluminum................................................... (3) 16 7 (NA) 36 31 31 31 31 23 22 23 27 30
Cadmium................................................... 55 57 64 48 (3) (3) 1 19 30 23 32 16 20 19
Gypsum................................................... 35 38 36 35 46 46 50 64 3 30 29 28 28 29
Copper................................................... 16 28 13 7 15 19 20 12 12 27 14 13 14 27
Iron and steel................................................... 13 22 19 13 13 12 13 15 22 21 20 20 27 22
Sulfur................................................... 14 3 16 1 21 11 12 14 18 21 13 13 18 17
Iron ore................................................... 25 21 18 22 3 (3) 2 7 13 14 14 14 12 17
Silver................................................... 7 (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (3) 14 14
Platinum group................................................... 87 92 91 90 88 (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA)
Mercury................................................... 27 (NA) (NA) (NA) (D) (D) (D) (D) (D) (NA) (NA) (D) (NA) (NA)
Selenium................................................... 59 (D) 52 55 46 50 48 39 31 31 38 (D) (D) (D)
Vanadium................................................... 35 (D) (D) (D) (D) (D) (D) (D) (D) 84 (D) (D) 78 80


D Withheld to avoid disclosure. NA Not available.
1 Includes alumina.
2 Beginning 1990, effect of sharp rise in exports of concentrates. If calculated on a refined zinc-only basis, reliance would be about the same as pre-1990 level; 1990, 64%; 1991, 61%; 1992, 61%.;1993,67%;1994,70%;1995,71%; and 1996 and 1997,70%.
3 Net exports.

Source: Through 1994, U.S. Bureau of Mines; thereafter, U.S. Geological Survey, Mineral Commodity Summaries; import and export data from U.S. Bureau of the Census.

http://minerals.er.usgs.gov/minerals/pubs/mcs/



http://www.allcountries.org/uscensus/1172_net_u_s_imports_of_selected.html

These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau.

Copyright © 2006 Photius Coutsoukis and Information Technology Associates, all rights reserved.