Quarter Billions of US Dollars 1996-01-01 0.0908 1996-04-01 0.0966 1996-07-01 0.0875 1996-10-01 0.0860 2001-01-01 0.0020 2001-04-01 0.0019 2001-07-01 0.0021 2001-10-01 0.0020 2004-04-01 0.0022 2004-07-01 0.0023 2004-10-01 0.0025 2005-01-01 0.0024 2005-10-01 0.2935 2006-01-01 0.2864 2006-04-01 0.2973 2006-07-01 0.2992 2008-01-01 2.5125 2008-04-01 3.3242 2008-07-01 12.6738 2008-10-01 11.7815 2009-01-01 14.0129 2009-04-01 7.8483 2009-07-01 13.6661 2009-10-01 6.1975 2010-01-01 10.3126 2010-04-01 5.8582 2010-07-01 9.8637 2010-10-01 7.0610 2011-01-01 0.6697 2011-04-01 0.6517 2011-07-01 3.3523 2011-10-01 10.3080 2012-01-01 12.3250 2012-04-01 8.7181 2012-07-01 8.9517 2012-10-01 16.0578 2013-01-01 9.9680 2013-04-01 13.2762 2013-07-01 16.0141 2013-10-01 1.6452 2014-01-01 2.3934 2014-04-01 12.3335 2014-07-01 11.2027 2015-04-01 2.7806