Quarter	Billions of US Dollars
1993-10-01	0.06314
1994-01-01	0.04245
1994-07-01	0.03191
1998-04-01	0.01156
1999-04-01	0.10582
1999-10-01	0.01110
2000-01-01	0.10630
2002-10-01	0.19501
2004-01-01	0.00911
2004-04-01	0.27100
2004-07-01	0.06986
2005-01-01	0.04472
2005-04-01	0.57123
2005-07-01	1.46793
2005-10-01	1.32716
2006-01-01	2.73035
2006-04-01	0.71727
2006-07-01	0.98102
2006-10-01	2.72331
2007-01-01	2.61553
2007-04-01	3.00924
2007-07-01	2.55349
2007-10-01	1.84976
2008-01-01	1.82686
2008-04-01	2.24217
2008-07-01	1.62623
2008-10-01	0.23075
2009-01-01	0.13178
2009-04-01	0.09950
2009-07-01	0.30826
2009-10-01	0.69811
2010-01-01	0.66110
2010-04-01	1.39997
2010-07-01	0.82746
2010-10-01	0.59577
2011-01-01	0.73494
2011-04-01	1.04309
2011-07-01	0.59454
2011-10-01	1.89148
2012-01-01	0.78584
2012-04-01	0.11047
2012-07-01	0.46910
2012-10-01	3.35081
2013-01-01	2.56202
2013-04-01	4.82633
2013-07-01	2.70053
2013-10-01	1.54900
2014-01-01	0.36601
2014-04-01	2.08555
2014-07-01	2.13526
2014-10-01	0.36073
2015-01-01	1.10599
2015-04-01	1.43800