Quarter	Billions of US Dollars
1995-07-01	0.10120
1997-04-01	0.25128
1997-07-01	0.17823
1997-10-01	0.09442
1998-01-01	0.38435
1998-04-01	0.51951
1998-07-01	0.10192
1999-01-01	0.49085
1999-10-01	0.47241
2000-04-01	0.19485
2000-07-01	0.19212
2000-10-01	0.51979
2001-04-01	0.66283
2001-07-01	0.31856
2001-10-01	0.14515
2002-01-01	0.91365
2002-07-01	0.01784
2002-10-01	0.36072
2003-07-01	0.20307
2004-04-01	0.10482
2005-10-01	0.03314
2006-04-01	0.00965
2006-07-01	0.11305
2006-10-01	0.05315
2007-01-01	0.04880
2007-04-01	0.08586
2007-07-01	0.03659
2007-10-01	0.41632
2008-01-01	0.00136
2008-04-01	0.02789
2008-07-01	0.01188
2008-10-01	0.03904
2009-01-01	0.17140
2009-04-01	0.00127
2011-04-01	0.02079
2011-07-01	0.02017
2013-01-01	0.02303
2013-07-01	0.09352
2014-04-01	0.00223