Quarter	Billions of US Dollars
1977-01-01	0.0421
1982-01-01	-0.0426
1989-07-01	0.1750
1990-10-01	0.0825
1992-04-01	-0.0041
1993-04-01	0.2340
1995-07-01	0.2500
1995-10-01	0.0252
1996-01-01	0.1500
1996-07-01	0.2750
1997-04-01	0.5000
1998-10-01	-0.1376
1999-04-01	0.1695
2000-01-01	-0.0196
2000-07-01	-0.1500
2001-04-01	0.8750
2001-07-01	-0.0750
2002-07-01	0.2300
2004-01-01	1.6776
2004-04-01	-0.0178
2004-10-01	1.1003
2005-01-01	1.0750
2005-04-01	2.0000
2005-07-01	0.9972
2005-10-01	2.2050
2006-01-01	4.9121
2006-04-01	2.8844
2006-07-01	0.5754
2006-10-01	11.1743
2007-01-01	5.3394
2007-04-01	1.8454
2007-07-01	6.5637
2007-10-01	7.9790
2008-01-01	-1.1781
2008-04-01	7.3520
2008-07-01	5.1418
2008-10-01	-0.5017
2009-01-01	-1.7838
2009-04-01	10.6408
2009-07-01	7.4563
2009-10-01	1.4412
2010-01-01	-0.6689
2010-04-01	-1.5976
2010-07-01	1.9694
2010-10-01	5.1347
2011-01-01	4.6849
2011-04-01	2.8942
2011-07-01	-0.9755
2011-10-01	6.7416
2012-01-01	2.1227
2012-04-01	-1.9026
2012-07-01	2.5105
2012-10-01	4.9926
2013-01-01	7.2853
2013-04-01	0.4331
2013-07-01	-0.5308
2013-10-01	1.2684
2014-01-01	0.8889
2014-04-01	5.1922
2014-07-01	-2.5560
2014-10-01	-0.2448
2015-01-01	6.0999
2015-04-01	2.8379