The figures displayed in the calendar represent the rate on the Treasury Bill auctioned.
U.S. Treasury Bills have maturities of a few days to one year. Governments issue treasuries to borrow money to cover the gap between the amount they receive in taxes and the amount they spend to refinance existing debt and/or to raise capital. The rate on a Treasury Bill represents the return an investor will receive by holding the bill for its entire duration. All bidders receive the same rate at the highest accepted bid.
