,Instrument,"U.S. government securities/Treasury bills (secondary market)"
  ,Maturity,"4-week"
  ,Frequency,"Annual"
  ,Description,"4-week Treasury bill secondary market rate discount basis"
  ,Note,"Annualized using a 360-day year or bank interest."
  ,Note,"On a discount basis."


DATE      , TBWK4
2001, 2.43
2002, 1.60
2003, 1.00
2004, 1.24
2005, 2.94
2006, 4.67
2007, 4.32
2008, 1.27