Quarter	Billions of US Dollars
1993-07-01	2.0441
1993-10-01	1.6481
1994-01-01	1.7419
1994-04-01	0.9681
1994-07-01	1.4275
1994-10-01	1.1595
1995-01-01	1.9698
1995-04-01	2.2792
1995-07-01	2.1992
1995-10-01	2.1050
1996-01-01	3.3012
1996-04-01	4.9804
1996-07-01	3.1248
1996-10-01	3.3375
1997-01-01	3.0948
1997-04-01	2.8426
1997-07-01	3.7229
1997-10-01	2.8464
1998-01-01	3.5007
1998-04-01	2.3568
1998-07-01	1.9784
1998-10-01	2.8659
1999-01-01	1.7422
1999-04-01	1.5518
1999-07-01	2.8472
1999-10-01	1.6868
2000-01-01	2.3902
2000-04-01	2.4024
2000-07-01	2.5540
2000-10-01	3.7197
2001-01-01	3.4892
2001-04-01	4.1510
2001-07-01	2.7133
2001-10-01	2.4386
2002-01-01	3.2171
2002-04-01	2.9432
2002-07-01	2.7420
2002-10-01	3.7319
2003-01-01	5.7918
2003-04-01	5.4539
2003-07-01	4.5586
2003-10-01	6.4080
2004-01-01	9.4994
2004-04-01	7.2854
2004-07-01	8.2603
2004-10-01	7.6918
2005-01-01	8.2681
2005-04-01	8.4267
2005-07-01	10.6989
2005-10-01	8.4986
2006-01-01	11.0918
2006-04-01	8.6408
2006-07-01	9.6484
2006-10-01	11.1828
2007-01-01	15.9002
2007-04-01	11.8290
2007-07-01	11.4153
2007-10-01	15.2238
2008-01-01	12.3860
2008-04-01	13.9997
2008-07-01	11.5137
2008-10-01	3.7029
2009-01-01	12.9349
2009-04-01	9.1204
2009-07-01	3.9370
2009-10-01	5.3605
2010-01-01	5.4721
2010-04-01	2.4581
2010-07-01	2.2817
2010-10-01	2.0269
2011-01-01	0.9749
2011-04-01	2.1182
2011-07-01	0.7067
2011-10-01	0.1295
2012-01-01	0.1026
2012-04-01	0.0996
2012-07-01	0.0288
2012-10-01	1.0748
2013-01-01	0.5149
2013-04-01	0.9193
2013-07-01	3.3832
2013-10-01	1.8502
2014-01-01	2.6108
2014-04-01	4.5495
2014-07-01	3.8420
2014-10-01	1.8288
2015-01-01	6.8683
2015-04-01	3.5665