Quarter	Billions of US Dollars
2002-01-01	0.09495
2004-04-01	0.00004
2004-10-01	0.37381
2005-01-01	0.44706
2005-10-01	0.31987
2006-01-01	0.25467
2006-04-01	0.03074
2006-07-01	0.34510
2007-01-01	0.04909
2007-04-01	0.99773
2007-07-01	0.30087
2007-10-01	0.11883
2008-01-01	0.01685
2008-04-01	-0.02941
2008-07-01	0.17055
2008-10-01	0.14957
2009-01-01	-0.00204
2009-04-01	0.13962
2009-07-01	0.10667
2009-10-01	0.04332
2010-01-01	-0.67951
2010-04-01	0.90544
2010-07-01	0.74445
2010-10-01	-0.07992
2011-01-01	1.29573
2011-04-01	-0.01150
2011-07-01	0.01089
2011-10-01	0.01174
2012-01-01	0.02940
2012-04-01	0.07818
2012-07-01	0.73505
2012-10-01	0.03933
2013-01-01	0.37334
2013-04-01	0.10484
2013-07-01	0.34451
2013-10-01	0.05692
2014-01-01	0.14035
2014-04-01	0.04814
2014-07-01	1.13167
2014-10-01	0.13654
2015-01-01	-0.00534
2015-04-01	-0.01664