World Metal Price (US$) Date Sliver/Oz Zinc/Ton Aluminium/Tom Copper/Ton Platinum/Oz 19-December 28.92 1897.50 1960.45 7338.24 1408.0020-December 29.02 1886.98 1962.46 7386.40 1415.0021-December 29.57 1899.30 1991.58 7510.05 1437.0022-December 29.19 1888.99 1991.58 7570.08 1420.0023-December 29.23 1902.66 2006.14 7662.37 1423.00
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