Quarter	Billions of US Dollars
1993-07-01	0.08900
1993-10-01	-0.04200
1994-04-01	-0.01700
1994-07-01	-0.01500
1994-10-01	0.00500
1995-01-01	0.03800
1995-04-01	0.51163
1995-07-01	0.73658
1995-10-01	0.72990
1996-01-01	-0.07301
1996-04-01	0.12767
1996-07-01	1.76860
1996-10-01	1.26330
1997-01-01	-0.60089
1997-04-01	-0.59299
1997-07-01	-0.69300
1997-10-01	-1.61352
1998-01-01	-0.10704
1998-04-01	0.17102
1998-07-01	-0.42830
1998-10-01	0.00448
1999-01-01	0.10028
1999-04-01	-0.34858
1999-07-01	-0.11659
1999-10-01	0.20400
2000-01-01	0.20667
2000-04-01	-0.10622
2000-07-01	0.65008
2000-10-01	-0.28550
2001-01-01	-0.52054
2001-04-01	0.07283
2001-07-01	-0.49737
2001-10-01	0.02900
2002-01-01	-0.08453
2002-04-01	0.40984
2002-07-01	0.06473
2002-10-01	0.07450
2003-01-01	0.12040
2003-04-01	-0.34538
2003-07-01	0.11459
2003-10-01	0.16604
2004-01-01	0.42737
2004-04-01	-0.32573
2004-07-01	-0.31364
2004-10-01	0.15152
2005-01-01	0.15780
2005-04-01	0.23877
2005-07-01	0.14659
2005-10-01	0.22563
2006-01-01	0.66325
2006-04-01	0.28798
2006-07-01	0.97506
2006-10-01	0.12461
2007-01-01	0.74982
2007-04-01	0.01940
2007-07-01	1.05603
2007-10-01	0.19904
2008-01-01	1.07507
2008-04-01	1.33975
2008-07-01	0.14317
2008-10-01	-4.85752
2009-01-01	0.69954
2009-04-01	2.21521
2009-07-01	0.49055
2009-10-01	0.11478
2010-01-01	-0.35287
2010-04-01	-0.23428
2010-07-01	-0.33978
2010-10-01	-1.71425
2011-01-01	0.24185
2011-04-01	0.13891
2011-07-01	0.77261
2011-10-01	1.22450
2012-01-01	0.09228
2012-04-01	0.48152
2012-07-01	0.24612
2012-10-01	-1.30838
2013-01-01	-0.16337
2013-04-01	0.15790
2013-07-01	0.76640
2013-10-01	0.50327
2014-01-01	0.23106
2014-04-01	-0.85626
2014-07-01	-1.34795
2014-10-01	0.91415
2015-01-01	0.83094
2015-04-01	1.24332