Quarter	Billions of US Dollars
1977-01-01	0.0421
1982-01-01	-0.0426
2002-07-01	0.2300
2004-01-01	1.3000
2004-10-01	1.0000
2005-01-01	1.0750
2005-04-01	2.0000
2005-07-01	0.4000
2005-10-01	1.8050
2006-01-01	4.9121
2006-04-01	2.5215
2006-07-01	0.3754
2006-10-01	10.3743
2007-01-01	3.2723
2007-04-01	1.7954
2007-07-01	4.7807
2007-10-01	4.9391
2008-01-01	-1.0701
2008-04-01	5.7619
2008-07-01	2.0622
2008-10-01	-0.5017
2009-01-01	-1.6838
2009-04-01	5.8413
2009-07-01	5.7459
2009-10-01	-4.1996
2010-01-01	-0.6689
2010-04-01	-1.1991
2010-07-01	0.1867
2010-10-01	2.3552
2011-01-01	0.0641
2011-04-01	2.7073
2011-07-01	-0.1329
2011-10-01	1.8685
2012-01-01	-0.0873
2012-04-01	-1.5698
2012-07-01	0.9691
2012-10-01	5.2477
2013-01-01	2.8712
2013-04-01	1.2880
2013-07-01	-1.0679
2013-10-01	1.0142
2014-01-01	2.0889
2014-04-01	5.5122
2014-07-01	-0.9146
2014-10-01	4.8110
2015-01-01	4.9573
2015-04-01	4.5598