Quarter Billions of US Dollars 2005-07-01 0.50000 2005-10-01 0.50000 2006-01-01 0.50000 2006-04-01 0.50000 2010-07-01 1.00000 2010-10-01 1.00000 2011-01-01 1.00000 2011-04-01 1.00000 2011-07-01 1.00798 2011-10-01 0.99719 2012-01-01 0.99562 2012-04-01 0.99247 2013-10-01 2.70000 2014-01-01 2.70000 2014-04-01 2.70000 2014-07-01 3.95000 2014-10-01 1.25000 2015-01-01 1.25000 2015-04-01 1.25000