Quarter	Billions of US Dollars
1992-07-01	0.07890
1992-10-01	0.02500
1994-01-01	0.05000
1995-04-01	0.09724
1995-07-01	0.25276
1995-10-01	0.03348
1996-01-01	0.13700
1996-04-01	0.57459
1996-07-01	0.51974
1996-10-01	0.93948
1997-01-01	0.18307
1997-04-01	-0.23064
1997-07-01	0.44521
1997-10-01	-0.09250
1998-01-01	-0.07250
1998-04-01	0.46630
1998-07-01	-0.18600
1998-10-01	0.26886
1999-01-01	0.19770
1999-04-01	-0.15127
1999-07-01	-0.28500
1999-10-01	-0.29832
2000-01-01	0.50600
2000-04-01	-0.29558
2000-07-01	0.34606
2000-10-01	1.10402
2001-01-01	-0.21931
2001-04-01	-0.17208
2001-07-01	1.04475
2001-10-01	1.08500
2002-01-01	-0.22678
2002-04-01	1.19700
2002-07-01	2.48457
2002-10-01	2.64560
2003-01-01	-0.14251
2003-04-01	0.24978
2003-07-01	0.75897
2003-10-01	0.84253
2004-01-01	-0.42389
2004-04-01	-0.35125
2004-07-01	0.16872
2004-10-01	-0.13865
2005-01-01	0.57059
2005-04-01	0.65240
2005-07-01	-0.66355
2005-10-01	0.87400
2006-01-01	1.26404
2006-04-01	0.57744
2006-07-01	0.78849
2006-10-01	1.28048
2007-01-01	0.73249
2007-04-01	1.28786
2007-07-01	0.10778
2007-10-01	-0.59471
2008-01-01	0.21059
2008-04-01	2.66772
2008-07-01	-0.19142
2008-10-01	-1.86601
2009-01-01	-0.45806
2009-04-01	-0.53837
2009-07-01	1.54759
2009-10-01	-1.18531
2010-01-01	-1.39282
2010-04-01	-0.70527
2010-07-01	0.04483
2010-10-01	-0.16388
2011-01-01	1.25299
2011-04-01	-0.34430
2011-07-01	0.33778
2011-10-01	-0.02283
2012-01-01	-0.28249
2012-04-01	0.04088
2012-07-01	-0.21027
2012-10-01	0.57155
2013-01-01	0.70255
2013-04-01	-0.01832
2013-07-01	-0.28393
2013-10-01	-0.23531
2014-01-01	1.05287
2014-04-01	-0.60583
2014-07-01	-1.18632
2014-10-01	1.55254
2015-01-01	-0.39214
2015-04-01	-0.07499