Quarter	Billions of US Dollars
1975-01-01	0.0600
1975-04-01	0.1000
1975-07-01	0.1000
1975-10-01	0.1000
1976-01-01	0.1000
1976-04-01	0.1000
1976-07-01	0.1000
1976-10-01	0.1000
1977-01-01	0.1000
1977-04-01	0.1000
1977-07-01	0.1000
1977-10-01	0.1000
1978-01-01	0.1000
1978-04-01	0.1000
1978-07-01	0.1000
1978-10-01	0.1000
1979-01-01	0.1000
1979-04-01	0.1000
1979-07-01	0.1000
1979-10-01	0.1000
1980-01-01	0.1000
1980-04-01	0.1000
1980-07-01	0.1000
1980-10-01	0.1000
1981-01-01	0.1000
1981-04-01	0.1000
1981-07-01	0.1000
1981-10-01	0.1000
1982-01-01	0.1000
1982-04-01	0.1000
1982-07-01	0.1000
1982-10-01	0.1000
1983-01-01	0.0400
1996-01-01	0.0500
1996-04-01	0.7502
1996-07-01	0.7436
1996-10-01	0.9819
1997-01-01	1.0219
1997-04-01	1.6225
1997-07-01	1.5818
1997-10-01	1.5326
1998-01-01	1.5158
1998-04-01	1.4866
1998-07-01	1.5409
1998-10-01	1.6497
1999-01-01	1.5955
1999-04-01	0.9280
1999-07-01	0.9765
1999-10-01	0.9746
2000-01-01	0.8650
2000-04-01	0.8701
2000-07-01	0.8433
2000-10-01	1.1260
2001-01-01	1.1635
2001-04-01	1.7780
2001-07-01	1.8899
2001-10-01	1.7050
2002-01-01	1.6948
2002-04-01	2.2955
2002-07-01	2.2767
2002-10-01	2.8540
2003-01-01	2.9462
2003-04-01	3.0650
2003-07-01	3.9336
2003-10-01	4.0273
2004-01-01	3.9228
2004-04-01	3.7268
2004-07-01	3.7965
2004-10-01	4.0644
2005-01-01	3.9025
2005-04-01	4.2448
2005-07-01	4.2349
2005-10-01	4.4184
2006-01-01	4.5092
2006-04-01	4.6454
2006-07-01	4.6340
2006-10-01	4.8601
2007-01-01	4.9102
2007-04-01	4.5632
2007-07-01	4.7421
2007-10-01	4.6572
2008-01-01	4.9662
2008-04-01	5.1926
2008-07-01	4.7550
2008-10-01	4.1354
2009-01-01	3.9330
2009-04-01	4.1774
2009-07-01	4.3316
2009-10-01	4.3090
2010-01-01	5.4113
2010-04-01	4.9653
2010-07-01	4.5508
2010-10-01	4.5094
2011-01-01	4.8366
2011-04-01	7.1394
2011-07-01	6.6943
2011-10-01	6.2128
2012-01-01	9.8481
2012-04-01	8.5878
2012-07-01	9.6950
2012-10-01	11.8050
2013-01-01	13.0541
2013-04-01	13.2170
2013-07-01	15.5146
2013-10-01	16.8938
2014-01-01	18.7970
2014-04-01	20.3582
2014-07-01	19.2894
2014-10-01	20.6499
2015-01-01	17.9385
2015-04-01	17.8212