Quarter	Billions of US Dollars
1993-07-01	0.060
1997-07-01	0.150
2001-10-01	0.325
2003-07-01	0.300
2004-07-01	0.330
2004-10-01	0.100
2008-04-01	0.035
2011-07-01	0.150
2012-01-01	0.200
2012-04-01	0.700
2012-10-01	0.500
2013-01-01	0.700
2013-04-01	0.100
2014-01-01	0.800