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1171. Federal Strategic and Critical Materials Inventory

[As of Dec. 31. Covers strategic and critical materialsessential to military and industrial requirements in time of national emergency]
 
Quantity 1 Quantity 1 Quantity 1 Value 2 (mil. dol.) Value 2 (mil. dol.) Value 2 (mil. dol.)
Mineral Quantity
Unit 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
 
Bauxite 3......................................... 1,000 lg. ton 14,333 17,957 18,032 18,032 18,031 18,032 18,033 18,033 17,373 (NA) 16,549 16,032 15,380 14,006 12,288 9,492 583 871 888 888 888 888 888 827 318 (NA) 191 203 207 111 95 71
Chromium 6 1,000 sh. ton 804 854 919 919 997 1,022 1,074 1,121 1,281 (NA) 1,149 1,192 1,145 1,128 1,070 1,068 773 836 897 883 920 952 917 924 943 (NA) 837 839 980 1,125 715 628
Cobalt................................................ Mil. lb 41 53 53 53 53 53 53 53 53 (NA) 52 44 40 38 32 28 1,020 590 600 350 398 406 443 1,609 798 (NA) 561 1,121 872 900 504 295
Diamonds: Stones..................................... Carat 1,000 19,224 12,549 10,551 8,549 7,777 7,777 7,777 7,777 7,777 (NA) 6,457 5,135 4,655 3,751 3,097 2,497 349 336 307 273 267 267 267 267 62 (NA) 533 52 78 99 31 25
  Industrial, bort.................................. Carat 1,000 23,693 22,001 22,001 22,001 22,001 22,001 17,353 14,021 5,077 (NA) 4,012 1,967 816 62 62 0 73 39 39 39 39 21 16 13 11 (NA) 3 9 4 4 0 0
Lead ........................................... 1,000 sh. ton (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 0 0 337 277 (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 198 140
Manganese 4..................................... 1,000 sh. ton 5,130 4,470 4,305 4,147 4,146 4,109 4,017 3,918 3,647 (NA) 2,792 2,817 2,683 2,691 2,251 2,144 599 520 536 457 665 881 962 1,000 753 (NA) 468 464 464 330 284 270
Palladium............. 1,000 troy oz (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 0 0 1,247 1,099 (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 183 343
Platinum......................................... 1,000 troy oz 466 466 453 453 466 453 453 453 453 (NA) 453 453 432 440 440 342 215 154 217 227 261 231 186 162 131 (NA) 131 154 134 162 162 120
Silver ........................................... 1,000 troy oz 139,500 136,006 125,806 111,582 104,921 98,174 92,151 83,951 72,502 (NA) 59,507 46,667 46,667 39,152 35,121 26,203 2,288 801 676 759 640 543 374 330 321 (NA) 158 158 158 96 105 86
Tantalum Group 1,000 lb (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 0 0 82,313 2,689 (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) (NA) 127 126
Tin ........................................... 1,000 metric ton 200 185 181 177 174 171 169 163 156 (NA) 145 130 116 104 84 72 3,158 2,324 1,129 1,241 1,316 1,182 962 914 1,034 (NA) 684 908