Quarter	Billions of US Dollars
1993-10-01	-0.01887
1994-04-01	-0.05426
1996-04-01	-0.00916
1997-04-01	-0.03607
2003-01-01	-0.09935
2003-07-01	0.02417
2005-01-01	-0.00407
2007-01-01	0.05160
2007-04-01	0.31950
2007-07-01	0.01930
2007-10-01	0.05780
2008-01-01	0.02900
2008-04-01	0.33597
2008-07-01	0.01040
2008-10-01	0.01124
2009-01-01	0.02453
2009-04-01	0.17679
2009-07-01	1.15900
2009-10-01	0.65026
2010-01-01	0.48460
2010-04-01	0.50027
2010-07-01	0.50311
2010-10-01	1.44930
2011-01-01	0.26209
2011-04-01	0.66988
2011-07-01	0.96776
2011-10-01	0.46525
2012-01-01	0.80172
2012-04-01	-0.01988
2012-07-01	0.28674
2012-10-01	0.58890
2013-01-01	0.39163
2013-04-01	0.55375
2013-07-01	0.63211
2013-10-01	2.33799
2014-01-01	0.19476
2014-04-01	0.64837
2014-07-01	-0.08760
2014-10-01	-0.67500
2015-01-01	0.23954
2015-04-01	0.57005