Quarter	Billions of US Dollars
1997-10-01	0.18750
1999-04-01	0.03208
1999-07-01	0.19229
1999-10-01	0.08283
2000-01-01	0.07784
2000-04-01	0.08347
2000-07-01	0.07868
2000-10-01	0.08455
2001-01-01	0.11326
2001-04-01	0.12003
2001-07-01	0.02240
2001-10-01	0.12240
2002-01-01	0.10000
2002-04-01	0.10000
2002-07-01	0.25000
2002-10-01	0.15000
2003-01-01	0.15000
2003-04-01	0.15000
2003-07-01	0.60000
2003-10-01	0.60000
2004-01-01	0.60000
2004-04-01	0.60000
2005-10-01	0.20000
2006-01-01	0.30000
2006-04-01	0.30000
2006-07-01	0.90000
2006-10-01	1.16741
2007-01-01	1.06734
2007-04-01	1.10582
2007-07-01	0.50747
2007-10-01	0.04197
2008-01-01	0.09547
2008-04-01	0.05103
2008-07-01	0.05103
2008-10-01	0.05103
2009-01-01	0.13533
2009-04-01	0.42507
2009-07-01	0.45656
2009-10-01	0.45506
2010-01-01	0.38560
2010-04-01	0.11436
2010-07-01	0.09589
2010-10-01	0.10993
2011-01-01	0.03366
2011-04-01	0.04615
2011-07-01	0.04589
2011-10-01	1.39072
2012-01-01	1.39352
2012-04-01	1.35719
2012-07-01	1.36009
2013-01-01	0.06000
2013-04-01	0.06000
2013-07-01	0.06000
2013-10-01	0.06000