Quarter	Billions of US Dollars
1977-04-01	0.00790
1978-04-01	0.06200
1982-04-01	-0.01003
1985-04-01	0.01000
1988-04-01	-0.06200
1994-10-01	0.19074
1995-01-01	5.76569
1995-10-01	0.02000
1997-01-01	-0.00178
1997-04-01	0.62500
1997-10-01	-0.01822
1998-01-01	-0.00599
1998-10-01	-0.26915
2000-01-01	-0.02260
2000-07-01	3.75000
2001-01-01	-0.47226
2001-04-01	-3.14282
2002-04-01	-0.14676
2002-10-01	-0.00311
2003-04-01	-0.00156
2004-10-01	-0.00233
2005-01-01	0.18716
2005-10-01	0.65000
2006-04-01	-0.74000
2009-01-01	-0.03179
2009-04-01	-2.90831
2009-07-01	-0.13072
2010-01-01	-0.13071
2010-04-01	-0.07117
2010-07-01	-0.13072
2011-07-01	-0.64952
2012-01-01	-0.18211
2012-10-01	-0.06805
2013-07-01	-0.58105
2014-01-01	-0.19368
2014-04-01	2.00000
2014-10-01	-0.38232
2015-01-01	0.74551
2015-04-01	0.74000