Quarter Billions of US Dollars 2001-04-01 0.00000 2001-07-01 0.00000 2001-10-01 0.60140 2002-01-01 0.60140 2002-04-01 0.60140 2002-07-01 0.60140 2005-10-01 1.44956 2006-01-01 1.44956 2006-04-01 1.44956 2006-07-01 1.44956