Quarter	Billions of US Dollars
2008-10-01	2.78340
2009-01-01	2.66160
2009-04-01	2.82680
2009-07-01	2.92860
2009-10-01	2.88120
2010-01-01	2.69580
2010-04-01	4.90840
2010-07-01	5.45920
2010-10-01	5.34480
2011-01-01	5.68280
2011-04-01	5.78120
2011-07-01	5.40120
2011-10-01	5.17560
2012-01-01	6.67800
2012-04-01	6.29500
2012-07-01	6.46500
2012-10-01	6.59700
2013-01-01	6.40250
2013-04-01	6.54000
2013-07-01	6.75250
2013-10-01	4.13730
2014-01-01	4.13640
2014-04-01	4.09740
2014-07-01	3.77490
2014-10-01	3.88512
2015-01-01	3.44288
2015-04-01	3.58048