Table 2.--Producer stocks of silvery pig iron, ferrosilicon and silicon metal in the United States (Metric tons gross weight) ------------------------------------------------------------------ Material and percent silicon content --------------------------------------------------------- Miscel- Silvery laneous pig Silicon silicon iron Ferrosilicon1/ metal2/ alloys3/ --------- ---------------------- ---------- ---------- Year 5% to 24% 25% to 55% 56% to 95% 96% to 99% 32% to 65% ------------------------------------------------------------------ 19694/ 5/W 6/29,278 7/15,162 3,559 5,966 19704/ W 57,118 30,709 5,524 10,520 19714/ W 59,996 40,496 11,819 11,574 19724/ W 51,939 33,071 6,759 13,650 1973 W 15,861 11,197 4,322 6,216 1974 W 21,214 8,554 7,590 10,905 1975 W 52,168 24,582 12,595 16,269 1976 W 49,261 24,684 16,840 15,699 1977 W 59,250 21,872 20,114 15,850 1978 W 61,310 25,848 6,729 10,859 1979 W 60,890 18,851 7,820 14,091 1980 W 63,816 21,910 10,053 13,805 1981 W 100,091 20,970 15,705 12,350 1982 W 85,326 25,359 11,763 15,126 1983 W 54,242 20,594 10,685 10,760 1984 W 54,956 26,451 9,464 12,973 1985 W 90,168 27,440 9,026 14,434 1986 W 51,901 20,620 4,711 13,978 1987 W 35,887 15,289 4,752 10,947 1988 W 46,890 12,653 6,237 13,708 1989 W 51,563 20,994 8,716 20,002 1990 W 69,119 21,673 13,746 17,645 ------------------------------------------------------------------ W Withheld to avoid disclosing company proprietary data. 1/Includes briquets. 2/Exclusive of semiconductor grades. 3/Exclusive of silicomanganese. 4/Excludes ferrosilicon used to make other silicon alloys. 5/Material classified as 5% to 20% silicon content. Amount withheld to avoid disclosing company proprietary data. 6/Material classified as 21% to 55% silicon content. 7/Excludes 56% to 70% ferrosilicon production.