Quarter Billions of US Dollars 2002-07-01 0.3000 2003-01-01 0.3485 2005-07-01 0.1500 2005-10-01 0.1500 2006-01-01 0.2000 2006-04-01 0.2000 2006-07-01 0.0500 2006-10-01 0.0500 2010-07-01 0.6535 2010-10-01 0.6535 2011-01-01 0.6535 2011-04-01 0.6535