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T-Bill Yields. The interest yields on U.S. Treasury securities in early 2009 fell to very low levels as a result of the combined events surrounding the global financial crisis. Calculate the simple and annualized yields for the 3-month and 6-month Tresury bills auctioned on March 9,2009 , listed here: The simple yield for the 3-month Treasury bills is \%. (Round to four decimal places.) Data table (Click on the following icon in order to copy its contents into a spreadsheet.)