Quarter	Billions of US Dollars
2005-10-01	0.2632
2006-10-01	0.1106
2007-01-01	0.3548
2007-04-01	2.2481
2007-07-01	1.3161
2007-10-01	0.5273
2008-01-01	0.6263
2008-04-01	0.2855
2008-07-01	2.2084
2009-01-01	0.3662
2009-04-01	0.8782
2009-07-01	2.5414
2009-10-01	0.1465
2010-01-01	0.5796
2010-04-01	0.1026
2010-07-01	1.2189
2010-10-01	4.7704
2011-01-01	5.7373
2011-04-01	6.7422
2011-07-01	6.9361
2011-10-01	3.5035
2012-01-01	4.7200
2012-04-01	11.2018
2012-07-01	5.2869
2012-10-01	4.1949
2013-01-01	4.8427
2013-04-01	7.9723
2013-07-01	1.6960
2013-10-01	8.7340
2014-01-01	10.1757
2014-04-01	13.4289
2014-07-01	9.6249
2014-10-01	14.3557
2015-01-01	8.4649
2015-04-01	8.4508