Quarter	Billions of US Dollars
2003-01-01	0.01387
2003-04-01	0.01466
2003-07-01	0.01455
2003-10-01	0.01584
2004-01-01	0.06673
2004-04-01	0.15247
2004-07-01	0.15399
2004-10-01	0.23831
2005-01-01	0.27537
2005-04-01	0.29955
2005-07-01	0.41966
2005-10-01	0.41255
2006-01-01	0.45966
2006-04-01	0.47814
2006-07-01	0.48471
2006-10-01	0.50500
2007-01-01	0.32234
2007-04-01	0.32686
2007-07-01	0.34317
2007-10-01	0.28258
2008-01-01	0.30352
2008-04-01	0.30260
2008-07-01	0.27455
2008-10-01	0.26714
2009-01-01	0.14994
2009-04-01	0.15925
2009-07-01	0.16498
2009-10-01	0.16231
2010-01-01	0.15187
2010-04-01	0.13826
2010-07-01	0.15377
2010-10-01	0.15055
2011-01-01	0.10078
2011-04-01	0.10253
2011-07-01	0.09579
2011-10-01	0.09179
2012-01-01	0.09475
2012-04-01	0.08931
2012-07-01	0.09173
2012-10-01	0.09360
2013-01-01	0.09084
2013-04-01	0.09279
2013-07-01	0.09580
2013-10-01	0.09783
2014-01-01	0.09781
2014-04-01	0.07409