Quarter	Billions of US Dollars
2001-10-01	7.782
2002-01-01	7.730
2002-04-01	9.607
2002-07-01	11.706
2002-10-01	8.887
2003-01-01	59.636
2003-04-01	60.618
2003-07-01	64.517
2003-10-01	69.210
2004-01-01	73.445
2004-04-01	71.364
2004-07-01	79.014
2004-10-01	78.858
2005-01-01	72.426
2005-04-01	66.577
2005-07-01	69.071
2005-10-01	72.898
2006-01-01	69.805
2006-04-01	77.233
2006-07-01	76.043
2006-10-01	83.515
2007-01-01	72.296
2007-04-01	78.681
2007-07-01	86.570
2007-10-01	99.332
2008-01-01	95.543
2008-04-01	85.705
2008-07-01	76.559
2008-10-01	72.375
2009-01-01	80.522
2009-04-01	63.963
2009-07-01	88.524
2009-10-01	82.011
2010-01-01	86.418
2010-04-01	63.361
2010-07-01	48.854
2010-10-01	34.459
2011-01-01	36.396
2011-04-01	39.054
2011-07-01	34.602
2011-10-01	35.772
2012-01-01	40.555
2012-04-01	42.075
2012-07-01	41.524
2012-10-01	44.251
2013-01-01	26.598
2013-04-01	25.281
2013-07-01	26.761
2013-10-01	25.392
2014-01-01	25.561
2014-04-01	32.851
2014-07-01	30.809
2014-10-01	23.405
2015-01-01	26.058