Quarter	Billions of US Dollars
1993-07-01	4.8970
1993-10-01	0.0161
1994-01-01	0.1703
1994-04-01	0.3315
1994-07-01	0.3578
1994-10-01	1.4399
1995-01-01	0.0118
1995-04-01	-0.0677
1995-07-01	0.4587
1995-10-01	0.0345
1996-01-01	0.8341
1996-04-01	0.1972
1996-07-01	-0.1634
1996-10-01	0.0836
1997-01-01	0.8516
1997-04-01	2.0307
1997-07-01	0.5595
1997-10-01	-2.0838
1998-01-01	1.1340
1998-04-01	2.6761
1998-07-01	2.5898
1998-10-01	3.7999
1999-01-01	7.3401
1999-04-01	7.5301
1999-07-01	7.2131
1999-10-01	0.8485
2000-01-01	0.5093
2000-04-01	8.3247
2000-07-01	10.0803
2000-10-01	6.4984
2001-01-01	25.2164
2001-04-01	4.9281
2001-07-01	8.3920
2001-10-01	9.7694
2002-01-01	-6.5241
2002-04-01	1.6290
2002-07-01	2.7030
2002-10-01	4.3882
2003-01-01	4.3180
2003-04-01	9.4085
2003-07-01	0.4915
2003-10-01	2.4304
2004-01-01	-8.5095
2004-04-01	4.7918
2004-07-01	2.9116
2004-10-01	2.5578
2005-01-01	-3.0243
2005-04-01	4.1776
2005-07-01	-3.9881
2005-10-01	8.4104
2006-01-01	2.3232
2006-04-01	8.8769
2006-07-01	-0.1633
2006-10-01	7.6506
2007-01-01	2.0245
2007-04-01	13.6384
2007-07-01	0.3525
2007-10-01	-3.7972
2008-01-01	-0.1432
2008-04-01	21.6592
2008-07-01	-2.7377
2008-10-01	0.5618
2009-01-01	14.9515
2009-04-01	35.8662
2009-07-01	13.6323
2009-10-01	7.9090
2010-01-01	14.7523
2010-04-01	4.9742
2010-07-01	3.3991
2010-10-01	9.3445
2011-01-01	9.1074
2011-04-01	5.6161
2011-07-01	4.9446
2011-10-01	11.2789
2012-01-01	11.7000
2012-04-01	6.8939
2012-07-01	4.5644
2012-10-01	7.8668
2013-01-01	5.3172
2013-04-01	1.8364
2013-07-01	4.2194
2013-10-01	2.5195
2014-01-01	11.0644
2014-04-01	18.2454
2014-07-01	-0.6659
2014-10-01	2.3227
2015-01-01	-1.4223
2015-04-01	-8.1868