Quarter Billions of US Dollars 1993-07-01 4.3606 1993-10-01 4.3606 1994-01-01 4.3606 1994-04-01 4.3606 1994-07-01 4.3606 1994-10-01 4.3606 1995-01-01 4.3606 1995-04-01 4.3606 1995-07-01 4.3606 1995-10-01 4.3606 1996-01-01 4.2106 1996-04-01 4.2106 1996-07-01 4.5711 1996-10-01 5.2455 1997-01-01 5.2231 1997-04-01 5.2503 1997-07-01 5.2312 1997-10-01 5.1806 1998-01-01 5.1182 1998-04-01 5.5714 1998-07-01 5.5257 1998-10-01 5.5481 1999-01-01 7.1602 1999-04-01 7.7218 1999-07-01 7.7235 1999-10-01 8.4022 2000-01-01 9.6401 2000-04-01 9.3238 2000-07-01 9.5466 2000-10-01 9.4579 2001-01-01 9.3283 2001-04-01 9.4447 2001-07-01 9.4406 2001-10-01 10.1163 2002-01-01 11.7153 2002-04-01 11.3859 2002-07-01 12.6008 2002-10-01 12.8430 2003-01-01 13.8492 2003-04-01 13.8477 2003-07-01 14.5482 2003-10-01 15.9293 2004-01-01 16.5114 2004-04-01 16.7553 2004-07-01 17.8389 2004-10-01 17.9605 2005-01-01 19.1299 2005-04-01 19.6894 2005-07-01 20.3577 2005-10-01 20.0418 2006-01-01 22.1844 2006-04-01 21.8126 2006-07-01 23.3175 2006-10-01 22.0535 2007-01-01 23.0752 2007-04-01 22.9514 2007-07-01 22.7597 2007-10-01 22.8261 2008-01-01 23.5124 2008-04-01 22.7373 2008-07-01 22.5788 2008-10-01 22.6060 2009-01-01 23.0587 2009-04-01 23.1651 2009-07-01 24.0095 2009-10-01 24.9684 2010-01-01 26.0056 2010-04-01 26.0296 2010-07-01 27.2089 2010-10-01 26.8784 2011-01-01 28.1550 2011-04-01 28.2179 2011-07-01 28.2622 2011-10-01 27.5981 2012-01-01 28.8854 2012-04-01 28.9299 2012-07-01 28.9975 2012-10-01 29.6641 2013-01-01 28.5709 2013-04-01 28.3682 2013-07-01 28.1447 2013-10-01 28.0111 2014-01-01 27.7958 2014-04-01 27.8842 2014-07-01 27.6236 2014-10-01 27.5387 2015-01-01 28.9116 2015-04-01 28.8970