Quarter	Billions of US Dollars
1993-07-01	2.9708
1993-10-01	2.7578
1994-01-01	2.7677
1994-04-01	2.7349
1994-07-01	2.4409
1994-10-01	2.0488
1995-01-01	2.2326
1995-04-01	2.6579
1995-07-01	2.4662
1995-10-01	2.6728
1996-01-01	3.1089
1996-04-01	3.6393
1996-07-01	2.5297
1996-10-01	2.0094
1997-01-01	1.7311
1997-04-01	1.7749
1997-07-01	2.9011
1997-10-01	2.9504
1998-01-01	2.8162
1998-04-01	3.4459
1998-07-01	3.3312
1998-10-01	4.4124
1999-01-01	3.6478
1999-04-01	4.6456
1999-07-01	5.1030
1999-10-01	5.5768
2000-01-01	6.0057
2000-04-01	16.8002
2000-07-01	25.8303
2000-10-01	27.7415
2001-01-01	24.8275
2001-04-01	19.9132
2001-07-01	11.9351
2001-10-01	9.6129
2002-01-01	7.3879
2002-04-01	5.8225
2002-07-01	4.8569
2002-10-01	4.2245
2003-01-01	4.2518
2003-04-01	4.5456
2003-07-01	3.8337
2003-10-01	3.3393
2004-01-01	2.4946
2004-04-01	3.4603
2004-07-01	3.8113
2004-10-01	3.4679
2005-01-01	3.7480
2005-04-01	3.4988
2005-07-01	3.0582
2005-10-01	2.7212
2006-01-01	2.3005
2006-04-01	2.5280
2006-07-01	3.0740
2006-10-01	2.4662
2007-01-01	2.4625
2007-04-01	2.7222
2007-07-01	1.9809
2007-10-01	2.1774
2008-01-01	2.2877
2008-04-01	2.7244
2008-07-01	2.7286
2008-10-01	3.3246
2009-01-01	2.6426
2009-04-01	2.1437
2009-07-01	1.6645
2009-10-01	1.0041
2010-01-01	0.7578
2010-04-01	0.7812
2010-07-01	1.0915
2010-10-01	0.9656
2011-01-01	1.1126
2011-04-01	2.8911
2011-07-01	1.9213
2011-10-01	2.1316
2012-01-01	2.4777
2012-04-01	2.5255
2012-07-01	2.4094
2012-10-01	3.0873
2013-01-01	2.1567
2013-04-01	2.7408
2013-07-01	3.5691
2013-10-01	3.2181
2014-01-01	3.3252
2014-04-01	2.7154
2014-07-01	2.5436
2014-10-01	2.2999
2015-01-01	2.3621
2015-04-01	2.4072