Quarter	Billions of US Dollars
2009-04-01	69.398
2009-07-01	67.608
2009-10-01	72.323
2010-01-01	73.740
2010-04-01	78.251
2010-07-01	77.186
2010-10-01	81.432
2011-01-01	81.081
2011-04-01	92.078
2011-07-01	77.886
2011-10-01	79.662
2012-01-01	88.073
2012-04-01	92.710
2012-07-01	97.697
2012-10-01	97.732
2013-01-01	102.060
2013-04-01	98.376
2013-07-01	94.324
2013-10-01	108.621
2014-01-01	106.962
2014-04-01	107.786
2014-07-01	101.232
2014-10-01	104.764
2015-01-01	102.608