Quarter	Billions of US Dollars
1996-01-01	0.05894
1996-04-01	0.05894
1996-07-01	0.05893
1996-10-01	0.05903
1997-01-01	0.05901
1997-04-01	0.05901
1997-07-01	0.05901
1997-10-01	0.05903
1998-01-01	0.05903
1998-04-01	0.05903
1998-07-01	0.05903
1998-10-01	0.05903
1999-01-01	0.05891
1999-04-01	0.05889
1999-07-01	0.05889
1999-10-01	0.05874
2000-01-01	0.05860
2000-04-01	0.05804
2000-07-01	0.05713
2000-10-01	0.05420
2006-01-01	0.08716
2006-04-01	0.15086
2006-07-01	0.15146
2006-10-01	0.16981
2007-01-01	0.21851
2007-04-01	0.19774
2007-07-01	1.28819
2007-10-01	1.46899
2008-01-01	1.39369
2008-04-01	1.47363
2008-07-01	1.43866
2008-10-01	1.42530
2009-01-01	1.48253
2009-04-01	1.49405
2009-07-01	1.52012
2009-10-01	1.52409
2010-01-01	1.35123
2010-04-01	1.31890
2010-07-01	1.30776
2010-10-01	1.28909
2011-01-01	1.25417
2011-04-01	1.25377
2011-07-01	1.25446
2011-10-01	1.24104
2012-01-01	1.23908
2012-04-01	1.23517
2012-07-01	0.24131
2012-10-01	0.01700
2013-01-01	0.01578
2013-04-01	0.01529
2013-07-01	0.01557
2013-10-01	0.01544
2014-01-01	0.01540
2014-04-01	0.01500
2014-07-01	0.01500
2014-10-01	0.01501
2015-01-01	0.01410
2015-04-01	0.01410