[ad_1]
金と銅。
・
FRED(Federal Reserve Economic Data)という統計データベー
FRED Graph | FRED | St. Louis Fed
Graph and download economic data from 1967-01-01 to 2019-06-05 about copper, metals, commodities, PPI, inflation, price index, price, indexes, USA, Public Domain: Citation Requested, London, gold, fixed, and Copyrighted: Citation Required.
[ad_2]