Quarter	Billions of US Dollars
1996-07-01	0.5506
1996-10-01	0.5310
1997-01-01	0.5031
1997-04-01	1.7505
1997-07-01	1.2134
1997-10-01	1.8518
1998-01-01	2.0500
1998-04-01	1.3642
1998-07-01	1.6596
1998-10-01	1.7672
1999-01-01	1.4984
1999-04-01	1.0663
1999-07-01	1.4509
1999-10-01	1.4154
2000-01-01	1.6375
2000-04-01	1.7274
2000-07-01	1.4665
2000-10-01	1.6723
2001-01-01	1.3327
2001-04-01	1.1374
2001-07-01	1.2195
2001-10-01	1.4096
2002-01-01	2.3437
2002-04-01	2.6449
2002-07-01	2.2454
2002-10-01	1.8640
2003-01-01	2.4431
2003-04-01	2.5402
2003-07-01	3.6401
2003-10-01	5.8150
2004-01-01	4.4466
2004-04-01	3.9353
2004-07-01	3.1988
2004-10-01	0.5880
2005-01-01	1.1688
2005-04-01	3.9357
2005-07-01	1.1385
2005-10-01	1.7101
2006-01-01	1.3044
2006-04-01	5.6526
2006-07-01	1.8047
2006-10-01	2.1024
2007-01-01	6.3845
2007-04-01	21.5090
2007-07-01	18.8102
2007-10-01	14.1906
2008-01-01	8.4055
2008-04-01	12.0938
2008-07-01	7.2907
2008-10-01	8.4922
2009-01-01	6.1172
2009-04-01	14.2626
2009-07-01	19.0173
2009-10-01	7.5043
2010-01-01	5.2297
2010-04-01	0.9533
2010-07-01	0.5139
2010-10-01	0.5321
2011-01-01	20.6002
2011-04-01	34.5427
2011-07-01	32.8217
2011-10-01	31.4599
2012-01-01	13.0797
2012-04-01	8.3185
2012-07-01	8.6598
2012-10-01	8.8061
2013-01-01	8.5852
2013-04-01	1.6906
2013-07-01	1.0000
2013-10-01	1.0000
2014-01-01	1.0000
2014-07-01	0.1067
2014-10-01	0.0967
2015-01-01	0.2073
2015-04-01	0.9306