Quarter	Billions of US Dollars
1999-10-01	253.943
2000-01-01	240.947
2000-04-01	239.510
2000-07-01	223.175
2000-10-01	244.305
2001-01-01	225.741
2001-04-01	218.751
2001-07-01	243.204
2001-10-01	255.232
2002-01-01	231.303
2002-04-01	271.811
2002-07-01	284.740
2002-10-01	332.071
2003-01-01	339.708
2003-04-01	357.893
2003-07-01	363.603
2003-10-01	414.176
2004-01-01	385.895
2004-04-01	390.000
2004-07-01	400.643
2004-10-01	509.946
2005-01-01	439.191
2005-04-01	418.251
2005-07-01	416.092
2005-10-01	471.509
2006-01-01	400.388
2006-04-01	419.480
2006-07-01	430.275
2006-10-01	529.667
2007-01-01	455.964
2007-04-01	461.982
2007-07-01	512.474
2007-10-01	631.613
2008-01-01	636.666
2008-04-01	569.765
2008-07-01	529.335
2008-10-01	644.101
2009-01-01	537.675
2009-04-01	586.834
2009-07-01	632.561
2009-10-01	707.794
2010-01-01	575.156
2010-04-01	543.553
2010-07-01	634.559
2010-10-01	702.798
2011-01-01	648.915
2011-04-01	640.992
2011-07-01	646.197
2011-10-01	704.192
2012-01-01	669.610
2012-04-01	621.170
2012-07-01	668.616
2012-10-01	735.231
2013-01-01	661.302
2013-04-01	635.785
2013-07-01	689.560
2013-10-01	722.795
2014-01-01	709.663
2014-04-01	665.873
2014-07-01	657.053
2014-10-01	663.984
2015-01-01	586.515