Quarter	Billions of US Dollars
2001-10-01	0.0881
2002-01-01	0.0872
2002-04-01	0.0611
2002-07-01	0.0604
2002-10-01	0.0643
2003-01-01	0.0668
2003-04-01	0.1900
2003-07-01	0.1937
2003-10-01	0.2100
2004-01-01	0.2032
2004-04-01	0.2021
2004-07-01	0.2063
2004-10-01	0.6692
2005-01-01	0.7341
2005-04-01	1.5916
2005-07-01	1.5851
2005-10-01	1.5528
2006-01-01	1.5255
2006-04-01	2.8361
2006-07-01	2.7885
2006-10-01	5.7467
2007-01-01	5.7650
2007-04-01	5.7870
2007-07-01	7.8012
2007-10-01	8.0646
2008-01-01	10.2731
2008-04-01	11.4734
2008-07-01	10.3849
2008-10-01	10.0822
2009-01-01	9.6201
2009-04-01	10.1755
2009-07-01	11.3374
2009-10-01	11.8172
2010-01-01	11.0374
2010-04-01	10.0309
2010-07-01	11.1162
2010-10-01	10.8465
2011-01-01	10.4920
2011-04-01	10.6551
2011-07-01	11.1544
2011-10-01	7.7736
2012-01-01	7.8207
2012-04-01	7.3722
2012-07-01	7.5433
2012-10-01	7.9612
2013-01-01	7.7264
2013-04-01	7.7550
2013-07-01	7.6114
2013-10-01	8.3242
2014-01-01	7.4704
2014-04-01	7.3796
2014-07-01	7.1685
2014-10-01	6.9075
2015-01-01	6.1213
2015-04-01	6.3659