Quarter	Billions of US Dollars
1976-01-01	0.01700
1976-04-01	0.03000
1976-10-01	0.03500
1977-01-01	0.03960
1977-07-01	0.00630
1978-04-01	0.03000
1979-04-01	0.02460
1979-07-01	0.05565
1981-04-01	-0.03000
1981-10-01	-0.03500
1982-07-01	-0.00710
1984-04-01	-0.01892
1985-10-01	-0.02582
1986-01-01	-0.01466
1986-10-01	-0.01845
1987-04-01	-0.02782
1987-07-01	-0.00185
1988-04-01	-0.00293
1989-01-01	-0.02724
1989-07-01	-0.02531
1994-10-01	5.83963
1995-07-01	0.25000
1996-04-01	0.18000
1996-07-01	0.16361
1996-10-01	0.05000
1997-04-01	0.13008
1997-07-01	0.40000
1998-10-01	-0.49490
1999-01-01	-0.00647
1999-04-01	-0.15000
1999-10-01	-0.05000
2000-01-01	0.57703
2000-04-01	-0.05711
2000-07-01	-0.13114
2000-10-01	-0.94356
2001-01-01	0.69143
2001-04-01	-0.31947
2001-07-01	-0.11376
2001-10-01	0.20781
2002-01-01	0.63299
2002-04-01	-0.03220
2002-07-01	1.37516
2002-10-01	-0.70290
2003-01-01	1.60972
2003-04-01	-0.20439
2003-07-01	1.67231
2003-10-01	1.00698
2004-01-01	3.06967
2004-04-01	1.26504
2005-01-01	4.60183
2005-04-01	7.26749
2005-07-01	-1.05500
2005-10-01	2.11703
2006-01-01	4.20682
2006-04-01	0.18170
2006-07-01	-0.63701
2006-10-01	0.72272
2007-04-01	1.22686
2007-07-01	-0.30000
2007-10-01	0.39416
2008-01-01	-0.77704
2008-04-01	3.80618
2008-07-01	-0.20951
2009-01-01	1.93218
2009-04-01	1.72268
2009-07-01	3.13490
2009-10-01	1.83183
2010-01-01	5.49582
2010-04-01	-0.36097
2010-07-01	2.64092
2010-10-01	-1.03233
2011-01-01	0.67377
2011-04-01	2.00000
2011-07-01	0.73187
2011-10-01	2.24688
2012-01-01	3.57076
2012-04-01	1.40780
2012-07-01	2.11180
2012-10-01	5.03360
2013-01-01	-3.56438
2013-10-01	2.51383
2014-01-01	0.90412
2014-04-01	-2.34910
2014-07-01	-0.09047
2014-10-01	-0.18012
2015-01-01	0.13290
2015-04-01	-0.43051