Quarter	Billions of US Dollars
1994-01-01	0.04686
1994-04-01	0.07881
1994-07-01	0.02017
1994-10-01	0.04992
1996-01-01	-0.00740
1996-04-01	-0.03106
1996-10-01	-0.05075
1997-04-01	-0.05173
1997-07-01	-0.01869
1998-04-01	-0.02844
2004-10-01	0.23683
2005-04-01	0.20000
2006-04-01	0.28324
2006-07-01	0.02451
2007-01-01	0.31344
2007-04-01	0.33644
2007-07-01	0.11304
2007-10-01	0.03353
2008-01-01	1.13159
2008-04-01	0.92104
2008-07-01	0.09960
2008-10-01	-0.00307
2009-01-01	0.06079
2009-04-01	0.36629
2009-07-01	0.12052
2009-10-01	-0.11758
2010-01-01	-0.06079
2010-04-01	-0.10460
2010-07-01	1.13962
2010-10-01	0.29257
2011-01-01	0.19657
2011-04-01	-0.13204
2011-07-01	0.12881
2011-10-01	0.02529
2012-01-01	0.86409
2012-04-01	-0.16519
2012-07-01	-0.07155
2012-10-01	0.40594
2013-01-01	-0.25732
2013-04-01	-0.60747
2013-07-01	-0.52147
2013-10-01	-0.40504
2014-04-01	-0.09274
2014-07-01	-0.09863
2014-10-01	-0.15130
2015-01-01	-0.00366
2015-04-01	-0.23129