Quarter Billions of US Dollars 1994-04-01 0.07520 1997-04-01 0.01357 1998-10-01 0.17814 1999-01-01 0.43749 1999-04-01 0.40921 1999-07-01 0.38370 1999-10-01 0.34388 2000-01-01 0.36308 2000-04-01 0.47956 2000-07-01 0.23503 2000-10-01 0.20325 2001-01-01 0.66225 2001-04-01 0.71013 2001-07-01 0.25176 2001-10-01 0.41718 2002-01-01 0.61822 2002-04-01 0.71215 2002-07-01 0.56085 2002-10-01 0.47505 2003-01-01 0.44294 2003-04-01 0.18166 2003-07-01 0.11396 2003-10-01 1.00849 2004-01-01 2.36295 2004-04-01 1.09632 2004-07-01 0.21294 2004-10-01 0.67059 2005-01-01 0.55497 2005-04-01 0.46545 2005-07-01 0.79183 2005-10-01 1.32333 2006-01-01 0.85958 2006-04-01 1.92125 2006-07-01 0.77020 2006-10-01 1.56333 2007-01-01 1.96269 2007-04-01 2.90475 2007-07-01 1.50628 2007-10-01 1.28467 2008-01-01 1.82039 2008-04-01 3.81748 2008-07-01 3.33779 2008-10-01 0.15722 2009-01-01 0.22578 2009-04-01 0.73951 2009-07-01 2.48080 2009-10-01 0.52365 2010-01-01 1.83130 2010-04-01 0.39241 2010-07-01 2.72180 2010-10-01 1.04287 2011-01-01 1.48652 2011-04-01 2.55671 2011-07-01 1.50174 2011-10-01 3.47326 2012-01-01 3.02940 2012-04-01 1.75069 2012-07-01 4.07931 2012-10-01 2.71795 2013-01-01 1.13793 2013-04-01 2.07045 2013-07-01 1.87099 2013-10-01 1.70472 2014-01-01 1.44614 2014-04-01 1.58024 2014-07-01 2.41957 2014-10-01 0.92798 2015-01-01 1.73844 2015-04-01 3.02193