Quarter	Billions of US Dollars
1994-01-01	0.04980
1996-01-01	0.01980
1996-07-01	0.00826
1997-01-01	0.01991
1997-04-01	0.02819
1998-01-01	0.01062
1998-04-01	0.00446
1999-01-01	0.01370
2000-01-01	0.02300
2000-07-01	0.05300
2001-04-01	0.07500
2002-07-01	0.02428
2003-04-01	0.02247
2005-01-01	0.01866
2005-04-01	0.15208
2005-07-01	0.10397
2005-10-01	0.13105
2006-01-01	0.04316
2006-04-01	0.11965
2006-07-01	0.17365
2006-10-01	0.16827
2007-01-01	0.07661
2007-04-01	0.07125
2007-07-01	0.10032
2007-10-01	0.07704
2008-01-01	0.00200
2008-04-01	0.33495
2008-07-01	0.20712
2009-04-01	0.35040
2009-10-01	0.00000
2010-04-01	0.12338
2010-10-01	0.26745
2011-01-01	1.29554
2011-04-01	0.28187
2011-07-01	0.26033
2011-10-01	0.34247
2012-01-01	0.71803
2012-04-01	0.00944
2012-07-01	0.11118
2012-10-01	0.97786
2013-01-01	0.53998
2013-04-01	0.14951
2013-07-01	0.06400
2013-10-01	0.09320
2014-04-01	0.00031
2014-07-01	0.31155
2014-10-01	0.35493
2015-04-01	0.38581