Quarter	Billions of US Dollars
1993-07-01	0.15494
1993-10-01	0.01245
1994-01-01	0.05866
1994-04-01	-0.03450
1994-07-01	0.05846
1994-10-01	0.00400
1995-01-01	-0.00222
1995-04-01	0.00800
1995-07-01	-0.00816
1995-10-01	0.09800
1996-01-01	0.00789
1996-04-01	-0.01000
1996-07-01	0.00789
1996-10-01	0.00010
1997-01-01	-0.00910
1997-04-01	-0.00250
1997-07-01	-0.03149
1997-10-01	-0.14242
1998-01-01	0.05380
1998-04-01	0.04650
1998-07-01	-0.01298
1998-10-01	-0.17449
1999-01-01	-0.00199
1999-04-01	0.20542
1999-07-01	0.00876
1999-10-01	-0.09842
2000-01-01	0.04789
2000-04-01	-0.02542
2000-07-01	-0.02032
2000-10-01	0.27301
2001-01-01	-0.29851
2001-04-01	-0.05527
2001-07-01	-0.09884
2002-01-01	0.00876
2002-07-01	0.01375
2002-10-01	0.14500
2003-01-01	0.05707
2003-04-01	0.04002
2003-07-01	-0.05211
2003-10-01	-0.02406
2004-01-01	0.02592
2004-04-01	0.01365
2004-07-01	0.06211
2004-10-01	-0.11112
2005-01-01	-0.03425
2005-04-01	-0.07099
2005-07-01	0.93839
2005-10-01	0.73912
2006-01-01	1.17579
2006-04-01	-0.58519
2006-07-01	1.41232
2006-10-01	1.67258
2007-01-01	1.40755
2007-04-01	-0.02856
2007-07-01	-0.48176
2007-10-01	-2.05341
2008-01-01	1.18921
2008-04-01	-0.67667
2008-07-01	0.34902
2008-10-01	-3.35262
2009-01-01	-0.35897
2009-04-01	-0.10220
2009-07-01	0.21076
2009-10-01	-0.57500
2010-01-01	-0.38120
2010-04-01	-0.17316
2010-07-01	-0.05682
2010-10-01	-0.17611
2011-01-01	0.11316
2011-04-01	0.27402
2011-07-01	0.66154
2011-10-01	-0.14564
2012-01-01	1.45702
2012-04-01	0.77515
2012-07-01	0.17578
2012-10-01	2.55344
2013-01-01	1.82448
2013-04-01	1.35335
2013-07-01	0.85838
2013-10-01	0.53423
2014-01-01	-0.95006
2014-04-01	1.15100
2014-07-01	0.01544
2014-10-01	0.22213
2015-01-01	1.28901
2015-04-01	2.80671