Quarter	Billions of US Dollars
1994-04-01	0.01567
1994-07-01	0.17761
1994-10-01	0.40354
1995-01-01	0.45169
1995-04-01	0.73362
1995-07-01	0.54669
1995-10-01	0.30000
1996-01-01	0.30004
1996-04-01	0.00004
1996-07-01	0.00004
1996-10-01	0.00004
1997-01-01	0.06849
1997-04-01	0.06239
1997-07-01	0.06100
1997-10-01	0.05774
1998-04-01	0.25000
1998-07-01	0.25000
1998-10-01	0.25000
1999-01-01	0.25000
1999-07-01	0.32756
1999-10-01	0.34247
2000-01-01	0.33066
2000-04-01	0.33207
2000-07-01	0.03137
2000-10-01	0.06898
2001-01-01	0.06548
2001-04-01	0.31287
2001-07-01	0.28501
2001-10-01	0.25000
2002-01-01	0.25000
2004-10-01	0.64268
2005-01-01	0.62133
2005-04-01	0.59299
2005-07-01	0.20201
2005-10-01	1.18171
2006-01-01	1.21241
2006-04-01	1.27130
2006-07-01	1.28388
2006-10-01	0.10778
2007-01-01	0.06279
2007-04-01	0.06586
2007-07-01	0.05238
2007-10-01	0.17932
2008-01-01	0.17059
2008-04-01	1.00337
2008-07-01	0.94243
2008-10-01	0.75180
2009-01-01	0.72928
2010-01-01	0.13479
2010-04-01	0.39936
2010-07-01	0.62893
2010-10-01	0.74717
2011-01-01	0.86963
2011-04-01	0.54921
2011-07-01	0.47961
2011-10-01	1.40455
2012-01-01	1.44382
2012-04-01	1.65989
2012-07-01	1.86981
2012-10-01	1.42875
2013-01-01	1.15363
2013-04-01	3.88123
2013-07-01	4.78604
2013-10-01	6.54966
2014-01-01	6.32452
2014-04-01	4.92337
2014-07-01	3.72978
2014-10-01	2.01144
2015-01-01	1.87610
2015-04-01	2.14699