Quarter	Billions of US Dollars
1993-07-01	0.5755
1993-10-01	0.9843
1994-01-01	1.2766
1994-04-01	2.0868
1994-07-01	2.0645
1994-10-01	2.9673
1995-01-01	2.6381
1995-04-01	2.2461
1995-07-01	2.7901
1995-10-01	3.7858
1996-01-01	4.1974
1996-04-01	5.0539
1996-07-01	4.9684
1996-10-01	6.5909
1997-01-01	6.1743
1997-04-01	5.8319
1997-07-01	5.8495
1997-10-01	3.0847
1998-01-01	5.8358
1998-04-01	5.9139
1998-07-01	4.3682
1998-10-01	3.8808
1999-01-01	2.0492
1999-04-01	2.6503
1999-07-01	4.4967
1999-10-01	4.1033
2000-01-01	4.3020
2000-04-01	5.5678
2000-07-01	3.3718
2000-10-01	2.8480
2001-01-01	3.1339
2001-04-01	2.9598
2001-07-01	3.0912
2001-10-01	3.9952
2002-01-01	2.8547
2002-04-01	2.5392
2002-07-01	2.1445
2002-10-01	1.8043
2003-01-01	4.1130
2003-04-01	4.5487
2003-07-01	5.7057
2003-10-01	5.3141
2004-01-01	4.6668
2004-04-01	4.5909
2004-07-01	4.5802
2004-10-01	4.6387
2005-01-01	4.3055
2005-04-01	4.6373
2005-07-01	3.6386
2005-10-01	2.7680
2006-01-01	2.6990
2006-04-01	1.9725
2006-07-01	2.1139
2006-10-01	2.3538
2007-01-01	2.1548
2007-04-01	4.2163
2007-07-01	3.6446
2007-10-01	4.4402
2008-01-01	4.9505
2008-04-01	4.4281
2008-07-01	3.3185
2008-10-01	2.2695
2009-01-01	3.0573
2009-04-01	3.3964
2009-07-01	4.4216
2009-10-01	4.0714
2010-01-01	3.2558
2010-04-01	1.9972
2010-07-01	2.5966
2010-10-01	2.8166
2011-01-01	3.0196
2011-04-01	3.1799
2011-07-01	2.0908
2011-10-01	2.1007
2012-01-01	3.8504
2012-04-01	3.6246
2012-07-01	4.3166
2012-10-01	8.4959
2013-01-01	8.6929
2013-04-01	10.4426
2013-07-01	9.4442
2013-10-01	8.0627
2014-01-01	8.5600
2014-04-01	6.9179
2014-07-01	7.4505
2014-10-01	6.0426
2015-01-01	6.8943
2015-04-01	8.3715