The Electronic Securities Transactions dataset details how many of each type of Treasury bonds are issued, redeemed, or outstanding from Fiscal Year (FY) 2002 until present. Outstanding bonds refer to those which are still in circulation, and have not yet been redeemed. The number of outstanding Treasury bonds is determined by taking the difference between the numbers of Treasury bonds issued and redeemed. This dataset does not contain any information on the values or yields of the Treasury bonds.