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根据美国矿业局宣布,美国1979年金属生产总值比1978年提高22％。从采出22种金属统计,1979年生产总值为85.25亿美元,1978年为69.92亿美元。在1979年中,有11种金属产量增加,有16种金属产值增加了。铜的生产量1979年比1978年增加5％,约达143万吨。铜价1978年平均每磅67美分,1979年12月初每磅升至1.07元,全年平均93美分,价值29亿美元,产值比1978年增加45％。铅的产量虽然比1978年的58.5万吨降至56.1万吨,下降了4％,但其产值由于平均价格从1978年的每磅34美分提高到1979年的52.8美分和世界性的铅精矿的短缺,使产值增加51％,达5.94亿美元。
According to the announcement of the United States Department of Mines, the U.S. GDP in 1979 increased 22% over 1978. Statistics from the mining of 22 kinds of metals, 1979 gross domestic product was 85.25 billion US dollars, in 1978 to 69.92 billion US dollars. In 1979, 11 kinds of metal production increased, 16 kinds of metal output increased. Copper production in 1979 increased by 5% over 1978, to about 1.43 million tons. Copper prices averaged 67 cents a pound in 1978 and rose to 1.07 yuan per pound in early December 1979, averaging 93 cents, or 2.9 billion U.S. dollars, a year-on-year increase of 45% over 1978. Although output of lead dropped 4% from 565,000 tonnes in 1978 to 581,000 tonnes in 1978, its value increased from an average price of 34 cents per pound in 1978 to 52.8 cents in 1979 and world-wide lead The shortage of concentrates increased output by 51% to $ 594 million.