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	11.4425
2008-04-01	11.6059
2008-07-01	11.6059
2008-10-01	11.6059
2009-01-01	11.6059
2009-04-01	15.1059
2009-07-01	16.5909
2009-10-01	25.1909
2010-01-01	25.1109
2010-04-01	25.6603
2010-07-01	29.7303
2010-10-01	33.9243
2011-01-01	33.8523
2011-04-01	33.2312
2011-07-01	33.3034
2011-10-01	37.7905
2012-01-01	38.2228
2012-04-01	38.7061
2012-07-01	42.9280
2012-10-01	47.0441
2013-01-01	49.1512
2013-04-01	50.7015
2013-07-01	50.7412
2013-10-01	53.2988
2014-01-01	53.4223
2014-04-01	51.2460
2014-07-01	51.4913
2014-10-01	51.3639
2015-01-01	49.1676
2015-04-01	48.5610