Quarter	Billions of US Dollars
2000-01-01	1.595
2000-04-01	1.541
2000-07-01	1.573
2000-10-01	1.644
2001-01-01	1.486
2001-04-01	1.436
2001-07-01	1.668
2001-10-01	1.824
2002-01-01	1.720
2002-04-01	2.102
2002-07-01	2.125
2002-10-01	2.614
2003-01-01	2.831
2003-04-01	3.144
2003-07-01	3.065
2003-10-01	3.170
2004-01-01	3.466
2004-04-01	3.422
2004-07-01	3.749
2004-10-01	4.435
2005-01-01	4.670
2005-04-01	4.339
2005-07-01	4.731
2005-10-01	4.912
2006-01-01	5.342
2006-04-01	5.533
2006-07-01	5.992
2006-10-01	6.826
2007-01-01	7.271
2007-04-01	7.399
2007-07-01	7.767
2007-10-01	8.636
2008-01-01	9.390
2008-04-01	9.018
2008-07-01	8.286
2008-10-01	8.219
2009-01-01	7.486
2009-04-01	8.064
2009-07-01	8.412
2009-10-01	8.304
2010-01-01	8.398
2010-04-01	7.686
2010-07-01	9.687
2010-10-01	9.671
2011-01-01	10.222
2011-04-01	10.470
2011-07-01	10.626
2011-10-01	10.008
2012-01-01	11.395
2012-04-01	10.192
2012-07-01	11.304
2012-10-01	11.466
2013-01-01	11.058
2013-04-01	11.410
2013-07-01	12.305
2013-10-01	12.523
2014-01-01	12.885
2014-04-01	12.899
2014-07-01	11.927
2014-10-01	12.013
2015-01-01	11.202