Quarter Billions of US Dollars 1995-01-01 0.15000 1995-04-01 0.15000 1995-07-01 0.15000 1995-10-01 0.15000 1996-10-01 0.02786 1997-01-01 0.08536 1997-04-01 0.11322 1997-07-01 0.17071 1997-10-01 0.17071 1998-01-01 0.17071 1998-04-01 0.17071 1998-07-01 0.17071 1998-10-01 1.11962 1999-01-01 1.11962 1999-04-01 1.40982 1999-07-01 1.40982 1999-10-01 0.50342 2000-01-01 0.50342 2000-04-01 0.25572 2000-07-01 0.25572 2000-10-01 0.25572 2001-01-01 0.33598 2001-04-01 1.11364 2001-07-01 1.11687 2001-10-01 1.36892 2002-01-01 1.29303 2002-04-01 0.51572 2002-07-01 0.76252 2002-10-01 0.50591 2003-01-01 1.63641 2003-04-01 1.87269 2003-07-01 2.14672 2003-10-01 2.19073 2004-01-01 1.21647 2004-04-01 0.97770 2004-07-01 0.68855 2004-10-01 0.90259 2005-01-01 0.66199 2005-04-01 1.06598 2005-07-01 0.75100 2005-10-01 1.75674 2006-01-01 1.77209 2006-04-01 1.44728 2006-07-01 1.74263 2006-10-01 0.42406 2007-01-01 0.42406 2007-04-01 1.03800 2007-07-01 0.74000 2007-10-01 0.74000 2008-01-01 1.67600 2008-04-01 0.93600 2008-07-01 0.93600 2008-10-01 0.93600 2009-01-01 1.41052 2009-04-01 1.46421 2009-07-01 1.49730 2009-10-01 2.04137 2010-01-01 2.05948 2010-04-01 2.05948 2010-07-01 2.05948 2010-10-01 2.11387 2011-01-01 0.81421 2011-04-01 0.83217 2011-07-01 0.86523 2011-10-01 0.21274 2012-01-01 1.00000 2012-04-01 1.00000 2012-07-01 1.24872 2012-10-01 1.24872 2013-01-01 1.94872 2013-04-01 1.94872 2013-07-01 1.75590 2013-10-01 1.75590 2014-01-01 1.10590 2014-04-01 1.10590 2014-07-01 1.05000 2014-10-01 1.05000 2015-01-01 1.23726 2015-04-01 1.25876