Quarter	Billions of US Dollars
1995-07-01	0.09605
1995-10-01	0.09527
1996-01-01	0.09524
1996-04-01	0.09437
1996-07-01	0.09458
1996-10-01	0.09448
1997-01-01	0.09434
1997-04-01	0.34508
1997-07-01	0.50942
1997-10-01	0.53659
1998-01-01	0.53414
1998-04-01	1.27437
1998-07-01	1.47839
1998-10-01	1.58971
1999-01-01	1.84806
1999-04-01	2.08295
1999-07-01	2.11303
1999-10-01	2.62185
2000-01-01	2.70013
2000-04-01	2.67208
2000-07-01	2.81892
2000-10-01	3.14139
2001-01-01	3.38508
2001-04-01	3.32367
2001-07-01	3.56192
2001-10-01	3.97429
2002-01-01	4.64571
2002-04-01	4.97908
2002-07-01	4.39863
2002-10-01	4.22478
2003-01-01	4.37698
2003-04-01	3.97284
2003-07-01	4.10006
2003-10-01	3.95705
2004-01-01	3.83333
2004-04-01	3.41652
2004-07-01	3.28038
2004-10-01	3.22936
2005-01-01	3.16275
2005-04-01	3.01833
2005-07-01	2.77275
2005-10-01	2.47570
2006-01-01	2.36900
2006-04-01	2.17185
2006-07-01	1.97281
2006-10-01	1.88166
2007-01-01	1.79746
2007-04-01	1.75639
2007-07-01	1.72544
2007-10-01	2.06344
2008-01-01	1.80271
2008-04-01	1.74843
2008-07-01	1.65453
2008-10-01	1.59921
2009-01-01	1.64586
2009-04-01	1.54581
2009-07-01	1.57466
2009-10-01	1.57860
2010-01-01	1.52515
2010-04-01	1.49963
2010-07-01	1.34315
2010-10-01	1.39303
2011-01-01	1.25486
2011-04-01	1.28145
2011-07-01	1.25100
2011-10-01	1.14281
2012-01-01	1.17264
2012-04-01	1.16084
2012-07-01	1.16808
2012-10-01	0.71508
2013-01-01	0.58564
2013-04-01	0.56268
2013-07-01	0.61935
2013-10-01	0.61272
2014-01-01	0.60024
2014-04-01	0.61413
2014-07-01	0.60114
2014-10-01	0.55769
2015-01-01	0.56412
2015-04-01	0.57069