Quarter	Billions of US Dollars
2006-01-01	0.100
2006-07-01	0.180
2007-01-01	1.400
2009-01-01	0.335
2009-07-01	0.160
2009-10-01	0.500
2010-01-01	0.775
2010-10-01	0.300
2012-07-01	1.500
2012-10-01	-1.400
2013-01-01	-0.100
2013-10-01	0.500
2014-04-01	0.505
2015-04-01	-0.800