Quarter	Billions of US Dollars
1986-04-01	0.1000
1988-01-01	0.0752
1988-07-01	0.2682
1989-01-01	0.4560
1989-07-01	0.4408
1990-01-01	0.2912
1993-04-01	-0.1000
1994-01-01	-0.0943
1994-07-01	-0.0498
1995-01-01	-0.3378
1995-07-01	-0.4484
1996-07-01	-0.9834
1996-10-01	1.0250
1997-01-01	1.1635
1997-04-01	2.8350
1997-07-01	0.1500
1997-10-01	0.6355
1998-01-01	0.9487
1998-04-01	4.9397
1998-07-01	6.4401
1998-10-01	-0.1000
1999-04-01	-0.1000
1999-07-01	-0.0005
1999-10-01	-0.2193
2000-04-01	-0.2807
2000-07-01	20.5189
2001-01-01	-0.1500
2001-04-01	-0.4591
2001-10-01	-0.1764
2002-01-01	0.5250
2002-04-01	0.8000
2002-10-01	1.6550
2003-01-01	2.0400
2003-04-01	-1.2145
2003-07-01	0.0000
2003-10-01	1.0550
2004-01-01	-0.6986
2004-04-01	1.1929
2004-07-01	0.7500
2004-10-01	0.2470
2005-01-01	0.7597
2005-04-01	-0.0500
2005-07-01	-2.3166
2005-10-01	0.0350
2006-01-01	-0.0310
2006-04-01	0.9400
2006-07-01	1.1743
2006-10-01	5.6648
2007-01-01	3.9286
2007-04-01	2.0592
2007-07-01	0.2401
2007-10-01	-0.4908
2008-01-01	-0.4655
2008-04-01	2.6297
2008-07-01	3.7529
2008-10-01	-0.2207
2009-01-01	-1.5160
2009-04-01	1.6633
2009-07-01	-1.5160
2009-10-01	-0.9268
2010-01-01	-3.1718
2010-04-01	6.2750
2010-07-01	0.5206
2010-10-01	1.8239
2011-01-01	4.2864
2011-04-01	2.5457
2011-07-01	-1.7274
2011-10-01	-1.0609
2012-01-01	-0.7946
2012-04-01	15.8957
2012-07-01	11.4549
2012-10-01	11.7525
2013-01-01	4.9903
2013-04-01	7.0773
2013-07-01	4.1424
2013-10-01	4.0928
2014-01-01	-11.6963
2014-04-01	0.2589
2014-07-01	1.1843
2014-10-01	0.3033
2015-01-01	-0.8821
2015-04-01	-2.1727