Quarter	Billions of US Dollars
1993-07-01	5.55198
1993-10-01	4.80686
1994-01-01	5.06297
1994-04-01	3.90016
1994-07-01	3.13565
1994-10-01	4.30365
1995-01-01	4.64103
1995-04-01	4.05980
1995-07-01	4.58594
1995-10-01	3.59857
1996-01-01	2.35831
1996-04-01	2.29032
1996-07-01	3.29625
1996-10-01	5.03834
1997-01-01	5.65607
1997-04-01	6.04616
1997-07-01	4.98177
1997-10-01	3.13763
1998-01-01	2.17228
1998-04-01	2.09283
1998-07-01	3.02787
1998-10-01	4.76931
1999-01-01	4.81914
1999-04-01	4.28376
1999-07-01	3.58129
1999-10-01	2.69367
2000-01-01	2.71977
2000-04-01	1.56361
2000-07-01	2.35409
2000-10-01	3.54039
2001-01-01	3.38492
2001-04-01	2.69497
2001-07-01	3.36457
2001-10-01	2.18908
2002-01-01	2.64113
2002-04-01	1.78872
2002-07-01	1.55499
2002-10-01	2.39156
2003-01-01	1.78421
2003-04-01	1.32345
2003-07-01	1.61843
2003-10-01	1.30309
2004-01-01	1.15456
2004-04-01	0.74625
2004-07-01	1.52385
2004-10-01	1.61228
2005-01-01	1.76129
2005-04-01	2.72588
2005-07-01	2.71805
2005-10-01	2.92285
2006-01-01	2.10148
2006-04-01	1.59450
2006-07-01	1.26143
2006-10-01	1.06423
2007-01-01	2.62130
2007-04-01	2.69549
2007-07-01	4.72282
2007-10-01	5.06751
2008-01-01	1.96752
2008-04-01	1.96927
2008-07-01	1.55395
2008-10-01	3.38459
2009-01-01	2.71946
2009-04-01	3.98478
2009-07-01	6.39840
2009-10-01	5.86321
2010-01-01	5.45359
2010-04-01	5.68624
2010-07-01	5.53643
2010-10-01	4.47159
2011-01-01	5.26778
2011-04-01	8.30958
2011-07-01	8.81225
2011-10-01	8.60345
2012-01-01	7.34719
2012-04-01	4.69588
2012-07-01	3.80790
2012-10-01	7.10252
2013-01-01	6.11436
2013-04-01	3.52603
2013-07-01	5.57725
2013-10-01	6.53830
2014-01-01	4.53190
2014-04-01	2.49755
2014-07-01	0.89313
2014-10-01	1.03280
2015-01-01	2.05531
2015-04-01	0.45930