Quarter	Billions of US Dollars
1994-01-01	0.13395
1994-04-01	0.19186
1994-07-01	0.31747
1994-10-01	0.33165
1995-01-01	0.36173
1995-04-01	0.32968
1995-07-01	0.21964
1995-10-01	0.13895
1996-01-01	0.23115
1996-04-01	0.20483
1996-07-01	0.22127
1996-10-01	0.20690
1997-01-01	0.08061
1997-04-01	0.08741
1998-04-01	0.10000
1998-07-01	0.34000
1998-10-01	0.24000
1999-01-01	0.40611
1999-04-01	0.40515
1999-07-01	0.23718
1999-10-01	0.24569
2000-01-01	0.05945
2000-04-01	0.43722
2000-07-01	0.10464
2000-10-01	0.50816
2001-01-01	0.76369
2001-04-01	0.96056
2001-07-01	1.02068
2001-10-01	0.73840
2002-01-01	0.41082
2002-04-01	0.42588
2002-07-01	1.71136
2002-10-01	1.41310
2003-01-01	1.38610
2003-04-01	1.29900
2003-07-01	0.88600
2003-10-01	1.14203
2004-01-01	0.58599
2004-04-01	0.48274
2004-07-01	0.69977
2004-10-01	0.95917
2005-01-01	1.09309
2005-04-01	1.36986
2005-07-01	0.52257
2005-10-01	0.65450
2006-01-01	0.37581
2006-04-01	2.48382
2006-07-01	2.65874
2006-10-01	1.94318
2007-01-01	1.94168
2007-04-01	1.02960
2007-07-01	1.06923
2007-10-01	0.98230
2008-01-01	1.10939
2008-04-01	0.32218
2008-07-01	0.32464
2008-10-01	0.29917
2009-01-01	0.12504
2009-04-01	0.12710
2009-07-01	0.13356
2010-04-01	0.28217
2010-07-01	0.29976
2010-10-01	0.30694
2011-01-01	0.30073
2012-04-01	0.25221
2012-07-01	0.25783
2012-10-01	0.23108
2013-01-01	0.21243
2014-04-01	0.09872
2014-07-01	0.09143
2014-10-01	0.08289
2015-01-01	0.08326
2015-04-01	0.05000