【過去データ取得先】 金、銀、プラチナ(1971-)・・・World Bank, Commodity Markets LME price (Annual) 銅(1850-1959)・・・USGS, Annual average U.S. producer copper price アルミニウム(1895-1959)・・・USGS, Annual average primary aluminum price 鉛(1909-1959)・・・USGS, Annual average lead price 亜鉛(1875…
