Table 7.--Shipments of usable iron ore1/ from mines in the United States (Thousand metric tons unless otherwise specified) -------------------------------------------------------------------------------------------------- Iron Iron Value Average contained content of of value Year Shipments in usable ore shipments at mine shipments (percent) (thousands) (dollars) -------------------------------------------------------------------------------------------------- 1965---------------- 86,291 49,460 57.317 815,014 9.44 1966---------------- 92,281 52,642 57.045 864,336 9.37 1967---------------- 84,348 49,067 58.172 824,527 9.78 1968---------------- 83,854 49,261 58.745 842,808 10.05 1969---------------- 92,035 54,513 59.231 937,357 10.18 1970---------------- 89,300 53,190 59.562 949,556 10.63 1971---------------- 78,941 47,396 60.041 896,754 11.36 1972---------------- 79,543 48,125 60.502 954,527 12.00 1973---------------- 92,321 55,875 60.523 1,166,300 12.63 1974---------------- 86,476 52,249 60.419 1,390,835 16.08 1975---------------- 77,185 47,107 61.030 1,627,540 21.09 1976---------------- 78,312 48,138 61.469 1,871,114 23.89 1977---------------- 54,921 33,859 61.651 1,422,696 25.90 1978---------------- 84,542 52,482 62.078 2,401,387 28.40 1979---------------- 87,603 54,683 62.422 2,814,440 32.13 1980---------------- 70,710 44,389 62.776 2,544,121 35.98 1981---------------- 73,340 46,389 63.252 2,915,239 39.75 1982---------------- 36,330 23,077 63.522 1,491,809 41.06 1983---------------- 45,310 28,728 63.400 1,944,988 42.92 1984---------------- 51,699 32,984 63.799 2,247,686 43.48 1985---------------- 50,203 32,022 63.783 2,076,730 41.37 1986---------------- 41,991 26,880 64.013 1,472,511 35.07 1987---------------- 47,983 30,784 64.157 1,503,087 31.33 1988---------------- 57,113 36,223 63.424 1,716,661 30.06 1989---------------- 58,299 36,849 63.207 1,839,873 31.56 1990---------------- 57,009 36,084 63.294 1,740,925 30.54 -------------------------------------------------------------------------------------------------- 1/Includes direct-shipping ore, concentrates, agglomerates, and byproduct ore. Less than 5% manganese.