Quarter	Billions of US Dollars
1993-07-01	0.08900
1993-10-01	0.03700
1994-01-01	0.04700
1994-04-01	0.00500
1994-07-01	0.01500
1994-10-01	0.01500
1995-01-01	0.05800
1995-04-01	0.53463
1995-07-01	1.26036
1995-10-01	1.45526
1996-01-01	1.90617
1996-04-01	2.01132
1996-07-01	3.67181
1996-10-01	3.82496
1997-01-01	3.02321
1997-04-01	2.22473
1997-07-01	1.99306
1997-10-01	0.30931
1998-01-01	0.37505
1998-04-01	0.97170
1998-07-01	0.17400
1998-10-01	0.22206
1999-01-01	0.78215
1999-04-01	0.34600
1999-07-01	0.23541
1999-10-01	0.26800
2000-01-01	0.55900
2000-04-01	0.24778
2000-07-01	0.83408
2000-10-01	0.10000
2001-01-01	0.01846
2001-04-01	0.30500
2001-07-01	0.13100
2001-10-01	0.08000
2002-01-01	0.14300
2002-04-01	0.59784
2002-07-01	0.22883
2002-10-01	0.14020
2003-01-01	0.22560
2003-04-01	0.28740
2003-07-01	0.31781
2003-10-01	0.37115
2004-01-01	0.82528
2004-04-01	0.39317
2004-07-01	0.27974
2004-10-01	0.46858
2005-01-01	0.73951
2005-04-01	0.43561
2005-07-01	0.49325
2005-10-01	0.75684
2006-01-01	1.37109
2006-04-01	1.07520
2006-07-01	1.58656
2006-10-01	1.41737
2007-01-01	2.62129
2007-04-01	1.96866
2007-07-01	3.65741
2007-10-01	2.74517
2008-01-01	3.35049
2008-04-01	3.87247
2008-07-01	5.75061
2008-10-01	0.30231
2009-01-01	2.60167
2009-04-01	2.91959
2009-07-01	2.34872
2009-10-01	2.22811
2010-01-01	2.76202
2010-04-01	3.27479
2010-07-01	2.59731
2010-10-01	1.05393
2011-01-01	2.36467
2011-04-01	2.08566
2011-07-01	2.79225
2011-10-01	3.51327
2012-01-01	3.12506
2012-04-01	2.04843
2012-07-01	2.52628
2012-10-01	1.02912
2013-01-01	2.20733
2013-04-01	2.24347
2013-07-01	2.96486
2013-10-01	3.25927
2014-01-01	2.07185
2014-04-01	2.25997
2014-07-01	1.30507
2014-10-01	2.96527
2015-01-01	1.80108
2015-04-01	3.98407