Quarter	Billions of US Dollars
1996-10-01	0.05417
1997-01-01	0.30000
1997-04-01	0.05770
1997-07-01	1.63501
1998-01-01	0.09739
1999-01-01	0.33285
1999-07-01	0.03287
1999-10-01	0.23551
2000-01-01	0.48220
2000-04-01	0.37576
2001-01-01	0.72237
2001-07-01	0.21163
2002-01-01	0.54620
2002-04-01	0.20064
2002-10-01	0.09967
2003-01-01	0.54106
2003-04-01	0.21542
2004-01-01	0.37511
2004-04-01	0.72483
2006-07-01	0.19179
2006-10-01	0.19170
2007-04-01	0.33772
2007-07-01	0.40713
2009-04-01	1.05020
2009-10-01	2.09777
2010-07-01	1.25000
2011-01-01	1.70079
2011-04-01	1.07335
2012-04-01	1.89331
2012-07-01	0.71863
2012-10-01	0.50000
2013-01-01	1.50000
2013-07-01	0.19903
2013-10-01	1.75000
2014-04-01	1.71127
2015-01-01	1.67795