Quarter	Billions of US Dollars
1972-04-01	0.02520
1973-04-01	0.01720
1976-04-01	0.00340
1976-07-01	0.00680
1977-07-01	0.04300
1978-04-01	0.06770
1978-10-01	0.05200
1979-01-01	0.10280
1979-07-01	0.04960
1982-01-01	0.31450
1982-04-01	0.04000
1982-10-01	0.30000
1983-01-01	0.06240
1983-04-01	0.21190
1983-07-01	0.85000
1983-10-01	0.10740
1984-01-01	0.35000
1984-04-01	0.06620
1984-07-01	0.12220
1984-10-01	0.60000
1985-01-01	0.60000
1985-04-01	0.29250
1985-07-01	0.65000
1985-10-01	0.47070
1986-07-01	0.04350
1987-04-01	0.16610
1988-01-01	0.23300
1988-04-01	0.12970
1989-01-01	0.22900
1989-07-01	0.20000
1990-07-01	0.20000
1991-01-01	0.19020
1993-04-01	0.50000
1993-10-01	0.46300
1994-01-01	0.20000
1994-04-01	0.73500
1994-07-01	0.56000
1994-10-01	0.40000
1995-07-01	1.55000
1995-10-01	0.35000
1996-01-01	0.35438
1996-04-01	0.23430
1996-07-01	0.11500
1996-10-01	2.18848
1997-01-01	0.30940
1997-04-01	1.93079
1997-07-01	0.62750
1997-10-01	0.33301
1999-01-01	0.45211
1999-04-01	1.00000
1999-07-01	0.75000
1999-10-01	0.02100
2000-01-01	0.00300
2000-04-01	0.10700
2000-07-01	0.50000
2000-10-01	0.97069
2001-01-01	0.60000
2001-04-01	1.25000
2001-10-01	0.60000
2002-01-01	1.17500
2002-04-01	3.71455
2002-07-01	0.40000
2002-10-01	1.50000
2003-01-01	0.70000
2003-04-01	0.10004
2003-10-01	0.60000
2004-01-01	0.42500
2004-04-01	1.65000
2004-07-01	1.23500
2004-10-01	0.84450
2005-01-01	0.67000
2005-04-01	0.84500
2005-07-01	1.00000
2005-10-01	0.20000
2006-01-01	1.20000
2006-07-01	0.95000
2006-10-01	0.73600
2007-04-01	1.45000
2007-07-01	0.05225
2007-10-01	0.79897
2008-01-01	0.55000
2008-07-01	0.43974
2009-07-01	4.50000
2010-01-01	0.35000
2010-04-01	1.55000
2010-07-01	1.18865
2011-01-01	0.30000
2011-04-01	3.59073
2011-10-01	0.28121
2012-01-01	1.04801
2012-04-01	5.91465
2012-07-01	2.75353
2013-01-01	1.24402
2013-04-01	3.23000
2013-07-01	0.14990
2013-10-01	0.72629
2014-01-01	0.66415
2014-04-01	1.70015
2014-07-01	2.02392
2014-10-01	1.97009
2015-01-01	5.19547
2015-04-01	2.49318