Quarter	Billions of US Dollars
1993-07-01	0.32000
1993-10-01	0.32000
1994-01-01	0.32000
1994-04-01	0.32000
1994-07-01	0.32000
1994-10-01	0.32000
1995-01-01	0.32000
1995-04-01	0.32000
1995-07-01	0.32000
1995-10-01	0.32000
1999-04-01	0.50000
1999-07-01	0.50000
1999-10-01	0.50000
2000-01-01	0.50000
2000-04-01	0.50000
2000-07-01	0.50000
2000-10-01	0.50000
2001-01-01	0.50000
2001-04-01	0.50000
2001-07-01	0.50000
2001-10-01	1.15000
2002-01-01	1.15000
2002-04-01	2.04925
2002-07-01	2.04580
2002-10-01	2.16461
2003-01-01	3.17685
2003-04-01	3.19281
2003-07-01	3.19956
2003-10-01	3.22890
2004-01-01	3.81672
2004-04-01	3.81465
2004-07-01	3.82227
2004-10-01	3.85863
2005-01-01	3.83892
2005-04-01	3.81276
2005-07-01	3.45000
2005-10-01	3.45000
2006-01-01	3.45000
2006-04-01	3.45000
2006-07-01	3.45000
2006-10-01	3.45000
2007-01-01	3.45000
2007-04-01	3.45000
2007-07-01	2.85000
2007-10-01	2.85000
2008-01-01	2.25000
2008-04-01	2.25000
2008-07-01	2.25000
2008-10-01	2.25000
2009-01-01	2.25000
2009-04-01	1.75000
2009-07-01	1.75000
2009-10-01	1.75000
2010-01-01	1.75000
2010-04-01	1.75000
2010-07-01	3.31117
2010-10-01	3.33137
2011-01-01	3.31483
2011-04-01	3.32796
2011-07-01	4.59316
2011-10-01	4.58294
2012-01-01	3.88685
2012-04-01	3.85211
2012-07-01	3.92320
2012-10-01	5.40753
2013-01-01	4.41917
2013-04-01	4.36204
2013-07-01	4.36356
2013-10-01	4.32928
2014-01-01	4.28896
2014-04-01	4.28886
2014-07-01	4.27191
2014-10-01	6.29652
2015-01-01	6.16373
2015-04-01	7.75340