United States. Department of the Treasury. "Cumulative Dividends, Interest and Distributions Report as of July 31, 2021," Dividends and Interest Report (August 10, 2021). https://fraser.stlouisfed.org/title/5152/item/604988, accessed on May 9, 2024.
United States. Department of the Treasury. "Cumulative Dividends, Interest and Distributions Report as of July 31, 2021," Dividends and Interest Report (August 10, 2021). https://fraser.stlouisfed.org/title/5152/item/604988, accessed on May 9, 2024.