Quarter	Billions of US Dollars
1981-10-01	0.0250
1982-01-01	0.0250
1982-04-01	0.0250
1982-07-01	0.0250
1982-10-01	0.0250
1983-01-01	0.0250
1983-04-01	0.0250
1983-07-01	0.0250
1983-10-01	0.0250
1984-01-01	0.0250
1984-04-01	0.0250
1984-07-01	0.0250
1984-10-01	0.0250
1985-01-01	0.0250
1985-04-01	0.0250
1985-07-01	0.0250
1985-10-01	0.0250
1986-01-01	0.0250
1986-04-01	0.0250
1986-07-01	0.0250
1994-01-01	0.0400
1994-04-01	0.0800
1994-07-01	0.0800
1994-10-01	0.0800
1995-01-01	0.0800
1995-04-01	0.0800
1995-07-01	0.0800
1995-10-01	0.0800
1996-01-01	0.0800
1996-04-01	0.0800
1996-07-01	0.0800
1996-10-01	0.0800
1997-01-01	4.9105
1997-04-01	5.0205
1997-07-01	5.0205
1997-10-01	5.0205
1998-01-01	5.0255
1998-04-01	5.0255
1998-07-01	5.0255
1998-10-01	4.4354
1999-01-01	4.4354
1999-04-01	4.4354
1999-07-01	4.4347
1999-10-01	4.4339
2000-01-01	4.4339
2000-04-01	4.4339
2000-07-01	4.4339
2000-10-01	4.4304
2001-01-01	4.4304
2001-04-01	4.4304
2001-07-01	4.4304
2001-10-01	4.4304
2002-01-01	5.1700
2002-04-01	5.1018
2002-07-01	5.1018
2002-10-01	4.6837
2003-01-01	5.4155
2003-04-01	5.4155
2003-07-01	5.3791
2003-10-01	4.9688
2004-01-01	4.9688
2004-04-01	5.3688
2004-07-01	5.3688
2004-10-01	6.2542
2005-01-01	6.5448
2005-04-01	6.4881
2005-07-01	7.2349
2005-10-01	7.9388
2006-01-01	7.9635
2006-04-01	8.0098
2006-07-01	8.2201
2006-10-01	9.2362
2007-01-01	10.6639
2007-04-01	10.5755
2007-07-01	11.3474
2007-10-01	11.4502
2008-01-01	10.2477
2008-04-01	10.0948
2008-07-01	9.9936
2008-10-01	9.7222
2009-01-01	11.0228
2009-04-01	11.1911
2009-07-01	12.3765
2009-10-01	13.0644
2010-01-01	13.6075
2010-04-01	14.5185
2010-07-01	15.5324
2010-10-01	19.1119
2011-01-01	20.2616
2011-04-01	20.3337
2011-07-01	20.3345
2011-10-01	20.7465
2012-01-01	23.5237
2012-04-01	24.8326
2012-07-01	26.5404
2012-10-01	27.1372
2013-01-01	29.2022
2013-04-01	31.8188
2013-07-01	31.8164
2013-10-01	32.4674
2014-01-01	33.5426
2014-04-01	34.6248
2014-07-01	36.3002
2014-10-01	40.4106
2015-01-01	40.8849
2015-04-01	41.8014