Quarter	Billions of US Dollars
1993-07-01	0.3466
1993-10-01	0.6331
1994-01-01	2.0780
1994-04-01	1.4735
1994-07-01	1.1261
1994-10-01	2.1391
1995-01-01	3.7384
1995-04-01	3.0118
1995-07-01	3.2279
1995-10-01	4.4205
1996-01-01	5.0413
1996-04-01	8.9942
1996-07-01	8.0627
1996-10-01	8.8649
1997-01-01	10.2838
1997-04-01	8.7001
1997-07-01	9.5084
1997-10-01	11.6843
1998-01-01	11.1118
1998-04-01	8.2924
1998-07-01	11.9928
1998-10-01	10.2267
1999-01-01	7.8168
1999-04-01	12.7556
1999-07-01	13.5201
1999-10-01	14.3555
2000-01-01	19.8693
2000-04-01	36.6091
2000-07-01	20.5521
2000-10-01	14.5131
2001-01-01	16.6470
2001-04-01	34.8436
2001-07-01	28.4349
2001-10-01	19.0790
2002-01-01	7.2707
2002-04-01	14.8636
2002-07-01	15.6393
2002-10-01	11.0167
2003-01-01	9.9192
2003-04-01	11.7161
2003-07-01	7.8417
2003-10-01	8.0118
2004-01-01	7.5495
2004-04-01	9.3687
2004-07-01	6.5022
2004-10-01	6.6855
2005-01-01	9.9822
2005-04-01	9.0288
2005-07-01	12.4056
2005-10-01	6.1083
2006-01-01	6.2916
2006-04-01	6.9773
2006-07-01	9.4803
2006-10-01	9.2295
2007-01-01	16.1940
2007-04-01	16.7674
2007-07-01	14.1747
2007-10-01	27.7954
2008-01-01	26.1139
2008-04-01	31.4068
2008-07-01	23.0718
2008-10-01	5.2880
2009-01-01	10.5362
2009-04-01	13.1036
2009-07-01	7.3044
2009-10-01	8.5902
2010-01-01	10.3810
2010-04-01	7.3479
2010-07-01	9.7435
2010-10-01	8.1256
2011-01-01	8.1326
2011-04-01	9.8159
2011-07-01	7.6528
2011-10-01	5.5216
2012-01-01	5.4871
2012-04-01	7.4720
2012-07-01	4.7363
2012-10-01	5.0320
2013-01-01	4.8000
2013-04-01	4.2124
2013-07-01	3.5108
2013-10-01	5.9506
2014-01-01	4.2134
2014-04-01	7.6077
2014-07-01	4.1836
2014-10-01	2.9403
2015-01-01	4.0559
2015-04-01	3.0532