Quarter	Billions of US Dollars
1993-07-01	0.1317
1993-10-01	0.1261
1994-01-01	0.1285
1994-04-01	0.1336
1994-07-01	0.1352
1994-10-01	0.1703
1995-01-01	0.2625
1995-04-01	0.2595
1995-07-01	0.2571
1995-10-01	0.4615
1996-01-01	0.5769
1996-04-01	0.7525
1996-07-01	0.9197
1996-10-01	1.1261
1997-01-01	1.7388
1997-04-01	1.7011
1997-07-01	1.8004
1997-10-01	1.6609
1998-01-01	1.6905
1998-04-01	1.9566
1998-07-01	2.3188
1998-10-01	2.0626
1999-01-01	1.5717
1999-04-01	1.7020
1999-07-01	1.8048
1999-10-01	1.6063
2000-01-01	1.6327
2000-04-01	1.9026
2000-07-01	2.1645
2000-10-01	2.5308
2001-01-01	2.4734
2001-04-01	2.4711
2001-07-01	2.7115
2001-10-01	2.7679
2002-01-01	3.4880
2002-04-01	4.7247
2002-07-01	4.6524
2002-10-01	5.7116
2003-01-01	6.3162
2003-04-01	6.9071
2003-07-01	7.2930
2003-10-01	7.9655
2004-01-01	7.6469
2004-04-01	7.7416
2004-07-01	7.9858
2004-10-01	9.7528
2005-01-01	9.8705
2005-04-01	10.0051
2005-07-01	10.0542
2005-10-01	10.0864
2006-01-01	10.7784
2006-04-01	11.4576
2006-07-01	11.4972
2006-10-01	12.3526
2007-01-01	12.9766
2007-04-01	13.6953
2007-07-01	16.7800
2007-10-01	20.4428
2008-01-01	23.9295
2008-04-01	25.1664
2008-07-01	21.8968
2008-10-01	18.9883
2009-01-01	16.9969
2009-04-01	18.7050
2009-07-01	19.7550
2009-10-01	18.0349
2010-01-01	16.5391
2010-04-01	14.0121
2010-07-01	16.0105
2010-10-01	14.9955
2011-01-01	16.0497
2011-04-01	16.9037
2011-07-01	15.6783
2011-10-01	14.4990
2012-01-01	15.7197
2012-04-01	14.2610
2012-07-01	14.9507
2012-10-01	14.1459
2013-01-01	13.1703
2013-04-01	12.9257
2013-07-01	14.0045
2013-10-01	13.3823
2014-01-01	13.1976
2014-04-01	12.8932
2014-07-01	12.0073
2014-10-01	11.3936
2015-01-01	8.6870
2015-04-01	8.3196