Quarter	Billions of US Dollars
1995-04-01	0.30000
1995-07-01	0.30000
1995-10-01	0.30000
1996-01-01	0.30004
1996-04-01	0.00004
1996-07-01	0.00004
1996-10-01	0.00004
1998-10-01	0.15000
1999-01-01	0.15000
1999-04-01	0.15000
1999-07-01	0.47756
1999-10-01	0.34247
2000-01-01	0.33066
2000-04-01	0.33207
2001-04-01	0.25000
2001-07-01	0.25000
2001-10-01	0.25000
2002-01-01	0.25000
2005-10-01	0.23594
2006-01-01	0.24208
2006-04-01	0.25426
2006-07-01	0.45320
2006-10-01	0.20000
2007-01-01	0.35000
2007-04-01	0.35000
2007-07-01	0.15000
2007-10-01	0.30000
2008-01-01	0.15000
2008-04-01	0.50000
2008-07-01	0.50000
2008-10-01	0.35000
2009-01-01	0.35000
2009-04-01	0.20000
2009-07-01	0.20000
2009-10-01	0.20000
2010-01-01	0.33479
2010-04-01	1.22710
2010-07-01	1.91034
2010-10-01	1.87973
2011-01-01	2.04118
2011-04-01	0.76797
2011-07-01	0.34458
2011-10-01	0.50714
2012-01-01	0.28699
2012-04-01	0.49534
2012-07-01	0.64465
2012-10-01	0.51326
2013-01-01	0.85346
2013-04-01	1.11612
2013-07-01	0.95135
2013-10-01	0.96490
2014-01-01	0.59652
2014-04-01	0.40863
2014-07-01	0.46240
2014-10-01	0.93836
2015-01-01	0.84786
2015-04-01	1.40137