Quarter	Billions of US Dollars
1996-04-01	0.05000
1996-07-01	0.05000
1996-10-01	0.10000
1997-01-01	0.10000
1997-04-01	0.10000
1997-07-01	0.10000
1997-10-01	0.10000
1998-01-01	0.10000
1998-04-01	0.10000
1998-07-01	0.10000
1998-10-01	0.10000
1999-01-01	0.10000
1999-04-01	0.05000
1999-07-01	0.05000
2000-04-01	0.19112
2000-07-01	0.17530
2000-10-01	0.18610
2001-01-01	0.17664
2001-04-01	0.16960
2001-07-01	0.18262
2001-10-01	0.28642
2002-01-01	0.28353
2002-04-01	0.32419
2002-07-01	0.32045
2002-10-01	0.34083
2003-01-01	0.35409
2003-04-01	0.37138
2003-07-01	0.37869
2003-10-01	0.66307
2004-01-01	0.64176
2004-04-01	0.63814
2004-07-01	0.65147
2004-10-01	0.86131
2005-01-01	0.82025
2005-04-01	1.37035
2005-07-01	1.36472
2005-10-01	1.92701
2006-01-01	2.58210
2006-04-01	2.71151
2006-07-01	2.70025
2006-10-01	2.54523
2007-01-01	0.57602
2007-04-01	0.58396
2007-07-01	0.61261
2007-10-01	0.30442
2008-01-01	0.32624
2008-04-01	0.01000
2008-07-01	0.01000
2008-10-01	0.01000
2009-01-01	0.01000
2009-04-01	0.01000
2009-07-01	0.01000
2010-10-01	1.06896
2011-01-01	1.13656
2011-04-01	1.51756
2011-07-01	1.97251
2011-10-01	1.89000
2012-01-01	1.95603
2012-04-01	1.84529
2012-07-01	4.02572
2012-10-01	3.97872
2013-01-01	3.87898
2013-04-01	3.92626
2013-07-01	4.03217
2013-10-01	4.08740
2014-01-01	4.78979
2014-04-01	4.75778
2014-07-01	4.47451
2014-10-01	4.35799
2015-01-01	4.16059
2015-04-01	4.29465