An archive of annual S&P 500 performances is available for download from the economic division of the Federal Reserve Bank of St. Louis website. The S&P 500 index includes 500 of the top publicly-held companies in the United States economy. Dividends are not included in the index archive.
The S&P 500 archives on the Federal Reserve Bank of St. Louis website are downloadable in Excel or text format and are available for an selectable range of years. Stocks of S&P 500 companies are traded on the New York Stock Exchange or NASDAQ and represent three-fourths of the equities held in the United States.