Quarter Billions of US Dollars 2005-07-01 0.1068 2005-10-01 0.6551 2006-01-01 1.1643 2006-04-01 1.3964 2006-07-01 3.2210 2006-10-01 4.5295 2007-01-01 10.2043 2007-04-01 10.3906 2007-07-01 9.7863 2007-10-01 8.8939 2008-01-01 7.5247 2008-04-01 7.0184 2008-07-01 7.2634 2008-10-01 9.0909 2009-01-01 8.7346 2009-04-01 10.8963 2009-07-01 11.4007 2009-10-01 7.9563 2010-01-01 6.6778 2010-04-01 6.7260 2010-07-01 6.9507 2010-10-01 5.3627 2011-01-01 7.9905 2011-04-01 5.9052 2011-07-01 5.6590 2011-10-01 5.0402 2012-01-01 3.5940 2012-04-01 4.5045 2012-07-01 4.8969 2012-10-01 5.4532 2013-01-01 5.7058 2013-04-01 5.8072 2013-07-01 7.2491 2013-10-01 7.7738 2014-01-01 7.8152 2014-04-01 8.8578 2014-07-01 8.6736 2014-10-01 8.2362 2015-01-01 7.3470 2015-04-01 11.9700