Quarter	Billions of US Dollars
1978-07-01	0.02500
1978-10-01	0.02500
1979-01-01	0.02500
1979-04-01	0.02500
1979-07-01	0.02500
1979-10-01	0.02500
1980-01-01	0.02500
1980-04-01	0.02500
1980-07-01	0.02500
1980-10-01	0.02500
1981-01-01	0.02500
1981-04-01	0.02500
1981-07-01	0.02500
1981-10-01	0.02500
1982-01-01	0.02500
1982-04-01	0.02500
1982-07-01	0.02500
1982-10-01	0.02500
1983-01-01	0.02500
1983-04-01	0.02500
1999-07-01	0.15000
1999-10-01	0.15000
2000-01-01	0.20000
2000-04-01	0.20000
2000-07-01	0.20000
2000-10-01	0.20000
2001-01-01	0.20000
2001-04-01	0.20000
2001-07-01	0.55350
2001-10-01	0.55350
2002-01-01	0.69350
2002-04-01	1.19350
2002-07-01	1.49350
2002-10-01	1.94500
2003-01-01	2.29350
2003-04-01	2.29350
2003-07-01	2.29350
2003-10-01	2.29350
2004-01-01	2.29350
2004-04-01	2.29350
2004-07-01	2.57995
2004-10-01	2.57995
2005-01-01	2.57995
2005-04-01	2.95495
2005-07-01	2.95495
2005-10-01	2.95495
2006-01-01	2.95495
2006-04-01	3.35495
2006-07-01	3.42995
2006-10-01	3.42995
2007-01-01	3.37995
2007-04-01	3.37995
2007-07-01	3.37995
2007-10-01	3.37995
2008-01-01	3.37995
2008-04-01	3.37995
2008-07-01	3.37995
2008-10-01	3.37995
2009-01-01	3.37995
2009-04-01	3.37995
2009-07-01	3.37995
2009-10-01	4.17995
2010-01-01	4.17995
2010-04-01	4.03995
2010-07-01	4.48995
2010-10-01	4.48995
2011-01-01	5.14345
2011-04-01	5.14345
2011-07-01	4.48995
2011-10-01	4.48995
2012-01-01	4.48995
2012-04-01	4.48995
2012-07-01	4.48995
2012-10-01	5.28995
2013-01-01	5.28995
2013-04-01	5.30395
2013-07-01	5.30395
2013-10-01	5.30395
2014-01-01	5.30395
2014-04-01	5.30395
2014-07-01	6.10395
2014-10-01	6.10395
2015-01-01	6.10395
2015-04-01	5.93995