Quarter	Billions of US Dollars
1993-07-01	1.92328
1993-10-01	2.45225
1994-01-01	2.08593
1994-04-01	2.38536
1994-07-01	2.48254
1994-10-01	2.07985
1995-01-01	1.00540
1995-04-01	1.19987
1995-07-01	1.25006
1995-10-01	1.81470
1996-01-01	1.39002
1996-04-01	1.15544
1996-07-01	0.77211
1996-10-01	1.04295
1997-01-01	0.41847
1997-04-01	0.48800
1997-07-01	0.64777
1997-10-01	0.47321
1998-01-01	0.14647
1998-04-01	0.09796
1998-07-01	0.00559
1998-10-01	0.01000
1999-01-01	0.56429
1999-04-01	1.30730
1999-07-01	1.08367
1999-10-01	0.27019
2000-01-01	0.63033
2000-04-01	2.92046
2000-07-01	0.10075
2000-10-01	0.03792
2001-01-01	0.78419
2001-04-01	0.56933
2001-07-01	0.16500
2001-10-01	0.29884
2002-01-01	0.07356
2002-04-01	1.34406
2002-07-01	0.53318
2003-01-01	1.92964
2003-04-01	2.76018
2003-07-01	1.50788
2003-10-01	1.44040
2004-01-01	3.21282
2004-04-01	0.55510
2004-07-01	0.75008
2004-10-01	0.01941
2005-01-01	0.56380
2005-04-01	0.11107
2005-07-01	0.12500
2005-10-01	0.00832
2006-01-01	0.39905
2006-04-01	0.75756
2006-07-01	0.38476
2007-01-01	0.18224
2007-04-01	1.19174
2007-07-01	0.73234
2007-10-01	0.26088
2008-01-01	4.71432
2008-04-01	1.99643
2008-07-01	2.57827
2009-01-01	3.25648
2009-04-01	4.29702
2009-10-01	0.00001
2010-04-01	1.37328
2010-07-01	4.15390
2011-01-01	2.60600
2011-04-01	0.28661
2011-07-01	3.38442
2012-01-01	2.16804
2012-04-01	2.55053
2012-07-01	3.43478
2012-10-01	0.81079
2013-01-01	0.26403
2013-04-01	0.31356
2013-07-01	0.13907
2014-01-01	0.27722
2014-04-01	0.45399
2014-07-01	0.19870
2015-04-01	0.08286