Quarter Billions of US Dollars 1990-04-01 0.1500 1990-07-01 0.1500 1990-10-01 0.1500 1991-01-01 0.1500 1991-04-01 0.1500 1991-07-01 0.1500 1991-10-01 0.1500 1992-01-01 0.1500 1992-04-01 0.1500 1992-07-01 0.1500 1992-10-01 0.1500 1993-01-01 0.1500 1993-04-01 0.1500 1993-07-01 0.1500 1993-10-01 0.1500 1994-01-01 0.1500 1994-04-01 0.1500 1994-07-01 0.1500 1994-10-01 0.1500 1995-01-01 0.1500 1995-04-01 0.1500 1995-07-01 0.1500 1995-10-01 0.1500 1996-01-01 0.1500 1996-04-01 0.1500 1996-07-01 0.1500 1996-10-01 0.2351 1997-01-01 0.2297 1997-04-01 0.5275 1997-07-01 0.5264 1997-10-01 0.5261 1998-01-01 0.6243 1998-04-01 0.6256 1998-07-01 1.0408 1998-10-01 1.0386 1999-01-01 0.9699 1999-04-01 1.2305 1999-07-01 1.2955 1999-10-01 1.2530 2000-01-01 1.2015 2000-04-01 1.2195 2000-07-01 1.1649 2000-10-01 1.2091 2001-01-01 1.1669 2001-04-01 1.3764 2001-07-01 1.5289 2001-10-01 1.6608 2002-01-01 2.1216 2002-04-01 1.8972 2002-07-01 1.8796 2002-10-01 1.9894 2003-01-01 2.0649 2003-04-01 2.1606 2003-07-01 2.2057 2003-10-01 3.0087 2004-01-01 2.9182 2004-04-01 2.8997 2004-07-01 3.9597 2004-10-01 4.3737 2005-01-01 4.1006 2005-04-01 4.4360 2005-07-01 4.4425 2005-10-01 4.3592 2006-01-01 4.4919 2006-04-01 5.2337 2006-07-01 5.2187 2006-10-01 5.2168 2007-01-01 5.4740 2007-04-01 8.6266 2007-07-01 8.5886 2007-10-01 8.8380 2008-01-01 9.0403 2008-04-01 9.8108 2008-07-01 9.2237 2008-10-01 8.6141 2009-01-01 8.3594 2009-04-01 11.5679 2009-07-01 12.6262 2009-10-01 12.1000 2010-01-01 13.3270 2010-04-01 11.1933 2010-07-01 12.0245 2010-10-01 13.2217 2011-01-01 14.3677 2011-04-01 15.6869 2011-07-01 16.3329 2011-10-01 17.0357 2012-01-01 11.8410 2012-04-01 11.3549 2012-07-01 5.1762 2012-10-01 10.5314 2013-01-01 10.5526 2013-04-01 10.8136 2013-07-01 11.0324 2013-10-01 7.6480 2014-01-01 10.4622 2014-04-01 11.3269 2014-07-01 8.9738 2014-10-01 8.8028 2015-01-01 7.5086 2015-04-01 9.2498