Quarter	Billions of US Dollars
1996-10-01	1.2000
1997-01-01	1.2000
1997-04-01	1.2000
1997-07-01	1.2000
1997-10-01	1.2000
1998-01-01	1.2000
1998-04-01	1.2000
1998-07-01	1.2000
1998-10-01	1.2000
1999-01-01	1.2000
1999-04-01	2.2000
1999-07-01	2.2000
1999-10-01	2.2000
2000-01-01	2.2000
2000-04-01	3.6000
2000-07-01	3.6000
2000-10-01	3.6000
2001-01-01	3.6000
2001-04-01	3.6000
2001-07-01	3.6000
2001-10-01	3.6000
2002-01-01	3.5273
2002-04-01	3.5273
2002-07-01	3.4909
2002-10-01	3.4909
2003-01-01	3.4546
2003-04-01	3.4546
2003-07-01	3.4546
2003-10-01	4.1546
2004-01-01	4.7468
2004-04-01	4.7468
2004-07-01	4.7105
2004-10-01	4.7105
2005-01-01	4.6741
2005-04-01	4.6741
2005-07-01	6.8878
2005-10-01	6.8878
2006-01-01	6.8514
2006-04-01	8.0014
2006-07-01	9.5150
2006-10-01	11.0050
2007-01-01	11.0050
2007-04-01	11.0050
2007-07-01	11.3050
2007-10-01	11.3050
2008-01-01	11.3050
2008-04-01	11.3050
2008-07-01	11.3050
2008-10-01	11.3050
2009-01-01	11.3050
2009-04-01	13.3050
2009-07-01	14.7900
2009-10-01	21.7900
2010-01-01	21.7100
2010-04-01	22.2595
2010-07-01	25.6795
2010-10-01	25.6753
2011-01-01	25.5953
2011-04-01	24.9453
2011-07-01	24.8653
2011-10-01	29.3653
2012-01-01	28.2853
2012-04-01	28.2853
2012-07-01	32.5011
2012-10-01	33.8374
2013-01-01	34.7581
2013-04-01	34.8136
2013-07-01	35.0887
2013-10-01	35.6861
2014-01-01	35.7203
2014-04-01	33.7655
2014-07-01	32.4355
2014-10-01	32.5817
2015-01-01	29.4597
2015-04-01	28.8069