Quarter	Billions of US Dollars
1993-07-01	0.05655
1993-10-01	0.06064
1994-01-01	0.12634
1994-04-01	0.08652
1994-07-01	0.35576
1994-10-01	0.11629
1995-01-01	0.05500
1995-04-01	0.05500
1995-07-01	0.20000
1995-10-01	0.36889
1996-01-01	0.33224
1996-04-01	0.32615
1996-07-01	0.07372
1996-10-01	0.18435
1997-01-01	0.22117
1997-04-01	0.25055
1997-07-01	0.24449
1998-01-01	0.02575
1998-04-01	0.01597
1998-07-01	0.08942
1998-10-01	0.04542
1999-01-01	0.08985
1999-04-01	0.22862
1999-07-01	0.36765
1999-10-01	0.24168
2000-01-01	0.24617
2000-04-01	0.13805
2000-07-01	0.44466
2000-10-01	0.02176
2001-04-01	0.31123
2001-07-01	0.27573
2001-10-01	0.38610
2002-01-01	0.40396
2002-04-01	1.30510
2002-07-01	1.27440
2002-10-01	0.71123
2003-01-01	0.77317
2003-04-01	0.51188
2003-07-01	0.13097
2003-10-01	0.38820
2004-01-01	0.46335
2004-04-01	0.39884
2004-07-01	0.33851
2004-10-01	0.40557
2005-01-01	0.65702
2005-04-01	0.68406
2005-07-01	0.78031
2005-10-01	0.70616
2006-01-01	0.58781
2006-04-01	1.00671
2006-07-01	1.00819
2006-10-01	0.85850
2007-01-01	1.09597
2007-04-01	0.53702
2007-07-01	0.45600
2007-10-01	1.65727
2008-01-01	1.78049
2008-04-01	1.08937
2008-07-01	0.42248
2008-10-01	0.22713
2009-01-01	0.08120
2009-04-01	0.50729
2009-07-01	0.46429
2009-10-01	0.58218
2010-01-01	0.53445
2010-04-01	0.27054
2010-07-01	0.34342
2010-10-01	0.54834
2011-01-01	0.79306
2011-04-01	0.18256
2011-07-01	2.12159
2011-10-01	2.03045
2012-01-01	1.95727
2012-04-01	2.47322
2012-07-01	0.46815
2012-10-01	0.77474
2013-01-01	5.01714
2013-04-01	4.93404
2013-07-01	5.09096
2013-10-01	4.92693
2014-01-01	0.63067
2014-04-01	0.70244
2014-07-01	0.39887
2014-10-01	0.29256
2015-01-01	0.29607
2015-04-01	0.08991