Quarter	Billions of US Dollars
2002-07-01	0.2300
2002-10-01	0.2300
2003-01-01	0.2300
2003-04-01	0.2300
2003-07-01	0.2300
2003-10-01	0.2300
2004-01-01	1.0300
2004-04-01	1.0300
2004-07-01	1.0300
2004-10-01	1.0300
2005-01-01	2.1050
2005-04-01	3.0050
2005-07-01	3.5118
2005-10-01	5.8651
2006-01-01	6.7066
2006-04-01	9.2327
2006-07-01	10.6927
2006-10-01	15.2142
2007-01-01	19.6635
2007-04-01	20.5977
2007-07-01	20.2972
2007-10-01	19.9418
2008-01-01	23.5083
2008-04-01	24.5596
2008-07-01	24.2968
2008-10-01	20.1807
2009-01-01	18.2204
2009-04-01	18.6836
2009-07-01	20.2497
2009-10-01	21.5203
2010-01-01	20.0780
2010-04-01	18.6214
2010-07-01	18.6054
2010-10-01	16.5189
2011-01-01	17.7020
2011-04-01	15.8524
2011-07-01	16.2903
2011-10-01	16.5586
2012-01-01	17.9141
2012-04-01	18.1700
2012-07-01	20.4722
2012-10-01	24.0481
2013-01-01	26.2958
2013-04-01	30.2333
2013-07-01	31.1806
2013-10-01	32.2656
2014-01-01	32.2985
2014-04-01	35.6767
2014-07-01	35.1663
2014-10-01	34.2915
2015-01-01	37.7643
2015-04-01	41.8335