Quarter	Billions of US Dollars
2001-07-01	0.13455
2002-01-01	0.01796
2002-07-01	-0.15278
2003-01-01	-0.02203
2004-04-01	0.01099
2004-10-01	-0.01211
2006-07-01	0.00139
2006-10-01	-0.00149
2007-07-01	0.03029
2007-10-01	0.05171
2008-01-01	-0.00820
2008-04-01	0.05800
2008-07-01	-0.00064
2008-10-01	-0.09653
2009-01-01	0.10588
2009-04-01	0.06161
2009-07-01	-0.04796
2009-10-01	-0.05075
2010-01-01	0.12674
2010-04-01	0.01390
2010-07-01	0.04252
2010-10-01	-0.01428
2011-01-01	-0.03461
2011-04-01	0.00270
2011-07-01	0.00925
2011-10-01	-0.00399
2012-01-01	-0.22105