Quarter Billions of US Dollars 2006-10-01 0.05 2007-01-01 0.05 2007-04-01 0.05 2007-07-01 0.05 2007-10-01 0.05 2008-01-01 0.05 2008-04-01 0.05 2008-07-01 0.05 2008-10-01 0.05 2009-01-01 0.05 2009-04-01 0.05 2009-07-01 0.05 2009-10-01 0.05 2010-01-01 0.05 2010-04-01 0.05 2010-07-01 0.05 2010-10-01 0.05 2011-01-01 0.05 2011-04-01 0.05 2011-07-01 0.05