2013-05-22: 3,147.493 Billions of Dollar
Sum of currency in circulation, reserve balances with Federal Reserve Banks, and service-related adjustments to compensate for float. Starting from July 18, 2012, the series is a sum of currency in circulation and reserve balances with Federal Reserve Banks. Service-related adjustments to compansate for float have been discontinued by the Board of Governors.
For more details, see http://www.federalreserve.gov/releases/h41/Current/. Calculated by the Federal Reserve Bank of St. Louis.
Original content +Bob DeMarco , All American Investor