Quarter	Billions of US Dollars
2002-10-01	0.1000
2003-01-01	0.1000
2003-04-01	0.2000
2003-07-01	0.2000
2003-10-01	0.2000
2004-01-01	0.4000
2004-04-01	0.7000
2004-07-01	0.7000
2004-10-01	1.1000
2005-01-01	1.3000
2005-04-01	1.9000
2005-07-01	1.9000
2005-10-01	2.2500
2006-01-01	2.5460
2006-04-01	2.9960
2006-07-01	3.8290
2006-10-01	4.1226
2007-01-01	4.1319
2007-04-01	4.0835
2007-07-01	4.1288
2007-10-01	4.0575
2008-01-01	3.8904
2008-04-01	3.5762
2008-07-01	3.5069
2008-10-01	3.3662
2009-01-01	3.1193
2009-04-01	3.1651
2009-07-01	3.2049
2009-10-01	2.7875
2010-01-01	2.7384
2010-04-01	2.7500
2010-07-01	2.8330
2010-10-01	6.6244
2011-01-01	7.7157
2011-04-01	8.0582
2011-07-01	7.3487
2011-10-01	7.3285
2012-01-01	7.3121
2012-04-01	7.3978
2012-07-01	7.4817
2012-10-01	8.4552
2013-01-01	9.4209
2013-04-01	12.1299
2013-07-01	12.6289
2013-10-01	12.9137
2014-01-01	12.9185
2014-04-01	12.9715
2014-07-01	13.0437
2014-10-01	14.7357
2015-01-01	14.3132
2015-04-01	13.8112