Quarter	Billions of US Dollars
1993-07-01	0.1973
1993-10-01	0.4566
1994-01-01	0.6321
1994-04-01	0.2135
1994-07-01	0.6786
1994-10-01	0.2526
1995-01-01	0.0833
1995-04-01	0.0812
1995-07-01	0.1952
1995-10-01	0.9910
1996-01-01	0.0736
1996-04-01	0.3144
1996-07-01	0.3145
1996-10-01	0.3685
1997-01-01	0.3229
1997-04-01	0.6802
1997-07-01	0.0839
1997-10-01	0.5128
1998-01-01	0.3796
1998-04-01	0.3652
1998-07-01	0.1434
1998-10-01	0.3477
1999-01-01	0.9281
1999-04-01	0.5338
1999-07-01	0.4925
1999-10-01	0.9441
2000-01-01	1.2693
2000-04-01	1.4228
2000-07-01	1.2801
2000-10-01	0.8297
2001-01-01	0.8363
2001-04-01	1.2726
2001-07-01	1.2633
2001-10-01	0.9761
2002-01-01	2.5287
2002-04-01	2.3258
2002-07-01	1.3926
2002-10-01	2.4042
2003-01-01	2.6075
2003-04-01	2.3064
2003-07-01	4.3269
2003-10-01	2.6035
2004-01-01	2.5156
2004-04-01	3.8290
2004-07-01	2.3931
2004-10-01	6.1271
2005-01-01	5.4625
2005-04-01	7.3352
2005-07-01	6.2038
2005-10-01	9.5848
2006-01-01	13.7849
2006-04-01	7.3298
2006-07-01	9.1241
2006-10-01	10.8854
2007-01-01	14.5610
2007-04-01	15.6177
2007-07-01	7.2621
2007-10-01	14.5072
2008-01-01	13.6359
2008-04-01	17.4092
2008-07-01	8.4763
2008-10-01	5.6246
2009-01-01	12.7340
2009-04-01	10.4283
2009-07-01	9.4457
2009-10-01	8.3007
2010-01-01	10.6751
2010-04-01	10.3243
2010-07-01	10.0911
2010-10-01	11.0436
2011-01-01	19.3398
2011-04-01	20.0530
2011-07-01	12.0643
2011-10-01	16.0127
2012-01-01	18.1986
2012-04-01	10.4150
2012-07-01	11.5907
2012-10-01	14.4090
2013-01-01	13.6586
2013-04-01	12.6012
2013-07-01	13.4834
2013-10-01	8.5941
2014-01-01	9.5993
2014-04-01	11.9956
2014-07-01	12.6255
2014-10-01	11.5774
2015-01-01	8.4502
2015-04-01	9.7054