Quarter	Billions of US Dollars
1993-07-01	0.24950
1993-10-01	0.21700
1994-01-01	0.29473
1994-04-01	0.30169
1994-07-01	0.31794
1994-10-01	0.31795
1995-01-01	0.29072
1995-04-01	0.31795
1995-07-01	0.34434
1995-10-01	0.30802
1996-01-01	0.29524
1996-04-01	0.27318
1996-07-01	0.28397
1996-10-01	0.29553
1997-01-01	0.30435
1997-04-01	0.33453
1997-07-01	0.29748
1997-10-01	0.24680
1998-01-01	0.23537
1998-04-01	0.24028
1998-07-01	0.23931
1998-10-01	0.18450
1999-01-01	0.21692
1999-04-01	0.19299
1999-07-01	0.19197
1999-10-01	0.19841
2000-01-01	0.19106
2000-04-01	0.15099
2000-07-01	0.16215
2000-10-01	0.09445
2001-01-01	0.16604
2001-04-01	0.16918
2001-07-01	0.13468
2001-10-01	0.10135
2002-01-01	0.12214
2002-04-01	0.13017
2002-07-01	0.19671
2002-10-01	0.03566
2003-07-01	0.11652
2003-10-01	0.24250
2004-01-01	0.26893
2004-04-01	0.51659
2004-07-01	0.30539
2004-10-01	0.53122
2005-01-01	0.47176
2005-04-01	0.17363
2005-07-01	0.17271
2005-10-01	0.17749
2006-01-01	0.16573
2006-04-01	0.29118
2006-07-01	0.36704
2006-10-01	0.35428
2007-01-01	0.71296
2007-04-01	0.83753
2007-07-01	0.81076
2007-10-01	0.28996
2008-01-01	0.49137
2008-04-01	0.36874
2008-07-01	1.00676
2008-10-01	0.66401
2009-01-01	0.35932
2009-04-01	0.76486
2009-07-01	0.52954
2009-10-01	0.94851
2010-01-01	0.41596
2010-04-01	0.71256
2010-07-01	1.98582
2010-10-01	1.68025
2011-01-01	1.95150
2011-04-01	2.32750
2011-07-01	2.22695
2011-10-01	1.04966
2012-01-01	0.78133
2012-04-01	0.08000
2012-07-01	0.04000
2012-10-01	0.05700
2013-01-01	0.08340
2013-04-01	0.34648
2013-07-01	0.24061
2013-10-01	0.16572
2014-01-01	0.22668
2014-04-01	0.32967
2014-07-01	0.05200
2014-10-01	0.07856