S&P 500 Historical Daily Percentage Changes from 1928 to the present
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This is the historical daily percentage price changes in the S&P 500 from 1928 to the present with the daily percentage changes already calculated for you. http://www.thedowcast.com/s-p-500-historical-prices--1928---present-.html
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Zenodo创建时间：
2020-03-05
