Quarter	Billions of US Dollars
1997-10-01	0.26915
1998-01-01	0.26915
1998-04-01	0.26915
1998-07-01	0.26915
1999-01-01	0.02260
1999-04-01	0.02260
1999-07-01	0.02260
1999-10-01	0.02260
2000-01-01	0.47226
2000-04-01	3.61508
2000-07-01	3.61508
2000-10-01	3.61508
2001-01-01	3.14282
2001-04-01	0.02775
2001-07-01	0.02775
2001-10-01	0.03086
2002-01-01	0.03086
2002-04-01	0.00467
2002-07-01	0.00467
2002-10-01	0.00156
2003-01-01	0.00156
2003-10-01	0.00233
2004-01-01	0.00233
2004-04-01	0.00233
2004-07-01	0.00233
2005-04-01	0.74000
2005-07-01	0.74000
2005-10-01	0.74000
2006-01-01	0.74000
2008-01-01	0.03179
2008-04-01	2.94010
2008-07-01	3.07082
2008-10-01	3.07082
2009-01-01	3.16974
2009-04-01	0.33260
2009-07-01	0.33260
2009-10-01	0.33260
2010-01-01	0.20189
2010-04-01	0.13072
2010-07-01	0.64952
2010-10-01	0.64952
2011-01-01	0.83163
2011-04-01	0.83163
2011-07-01	0.18211
2011-10-01	0.25016
2012-01-01	0.06805
2012-04-01	0.06805
2012-07-01	0.64910
2012-10-01	0.58105
2013-01-01	0.77474
2013-04-01	0.77474
2013-07-01	0.19368
2013-10-01	0.57601
2014-01-01	0.38681
2014-04-01	0.39681
2014-07-01	0.39681
2014-10-01	0.66449
2015-01-01	0.66000
2015-04-01	0.65000