Quarter	Billions of US Dollars
1997-10-01	0.04760
1998-01-01	0.04622
1998-04-01	0.04546
1998-07-01	0.04862
2000-01-01	0.08612
2000-04-01	0.08615
2000-07-01	0.07902
2000-10-01	0.08389
2001-01-01	0.30000
2001-04-01	0.30000
2001-07-01	0.30000
2001-10-01	0.30000
2003-07-01	0.17873
2003-10-01	0.42716
2004-01-01	1.03839
2004-04-01	1.02486
2004-07-01	0.84568
2004-10-01	0.68105
2005-01-01	0.62180
2005-04-01	0.58921
2005-07-01	1.18664
2005-10-01	1.17026
2006-01-01	0.60443
2006-04-01	0.60443
2006-07-01	0.33956
2006-10-01	0.33628
2007-01-01	0.99984
2007-04-01	1.18732
2007-07-01	0.91914
2007-10-01	0.92114
2008-01-01	1.12133
2008-04-01	1.10414
2008-07-01	1.03282
2008-10-01	1.04931
2009-01-01	0.99822
2009-04-01	0.78468
2009-07-01	0.81013
2009-10-01	0.79828
2010-01-01	1.04991
2010-04-01	0.95931
2010-07-01	1.02360
2010-10-01	1.00215
2013-04-01	0.65400
2013-07-01	0.67525
2013-10-01	0.68955
2014-01-01	1.72350
2014-04-01	1.02435
2014-07-01	0.94373
2014-10-01	0.91058