Quarter	Billions of US Dollars
1993-07-01	0.15433
1994-04-01	0.00304
1994-07-01	0.00314
1994-10-01	0.01684
1995-01-01	0.01889
1995-04-01	0.01531
1995-07-01	0.01669
1995-10-01	0.02162
1996-01-01	0.09746
1996-04-01	0.09626
1996-07-01	0.09614
1996-10-01	0.13080
1997-01-01	0.09406
1997-04-01	0.09076
1997-07-01	0.16171
1997-10-01	0.11961
1998-01-01	0.08450
1998-04-01	0.15457
1998-07-01	0.09546
1998-10-01	0.09684
1999-01-01	0.08106
1999-04-01	0.06314
1999-07-01	0.11146
1999-10-01	0.21168
2000-01-01	0.20129
2000-04-01	0.16108
2000-07-01	0.10429
2000-10-01	0.00692
2001-01-01	0.33554
2001-04-01	0.42464
2001-07-01	0.69319
2001-10-01	0.77500
2002-01-01	0.64314
2002-04-01	0.42567
2002-07-01	0.56698
2002-10-01	0.33371
2003-01-01	0.30053
2003-04-01	0.11338
2003-07-01	0.27933
2003-10-01	0.15000
2004-01-01	0.27224
2004-04-01	1.09012
2004-07-01	0.99128
2004-10-01	1.05601
2005-01-01	0.89898
2005-04-01	1.14273
2005-07-01	1.44183
2005-10-01	2.35066
2006-01-01	2.37867
2006-04-01	1.49988
2006-07-01	1.12257
2006-10-01	0.15513
2007-01-01	0.34352
2007-04-01	1.15433
2007-07-01	1.18928
2007-10-01	1.96377
2008-01-01	1.86987
2008-04-01	0.92602
2008-07-01	0.75538
2008-10-01	0.62793
2009-01-01	0.60284
2009-04-01	1.09624
2009-07-01	0.71439
2009-10-01	0.21962
2010-01-01	1.15290
2010-04-01	1.73897
2010-07-01	1.89680
2010-10-01	1.80764
2011-01-01	0.96468
2011-04-01	1.50705
2011-07-01	0.70349
2011-10-01	0.33810
2012-01-01	0.53311
2012-04-01	4.44027
2012-07-01	4.75082
2012-10-01	5.45352
2013-01-01	5.81543
2013-04-01	5.01858
2013-07-01	6.20916
2013-10-01	7.28566
2014-01-01	6.56398
2014-04-01	3.24926
2014-07-01	3.13803
2014-10-01	1.35832
2015-01-01	4.14510
2015-04-01	5.53670