Quarter	Billions of US Dollars
2001-10-01	17567.324
2002-01-01	17703.869
2002-04-01	19257.452
2002-07-01	19154.941
2002-10-01	19887.082
2003-01-01	20579.724
2003-04-01	21463.536
2003-07-01	22416.529
2003-10-01	23540.394
2004-01-01	25029.503
2004-04-01	25031.439
2004-07-01	25265.199
2004-10-01	26992.000
2005-01-01	26851.571
2005-04-01	26297.097
2005-07-01	26245.034
2005-10-01	26077.429
2006-01-01	26690.402
2006-04-01	27327.665
2006-07-01	27310.691
2006-10-01	27791.650
2007-01-01	28380.542
2007-04-01	28646.398
2007-07-01	29860.635
2007-10-01	30722.716
2008-01-01	32737.917
2008-04-01	32689.090
2008-07-01	32023.778
2008-10-01	33596.885
2009-01-01	33691.019
2009-04-01	36260.023
2009-07-01	38420.268
2009-10-01	39023.667
2010-01-01	39438.871
2010-04-01	39909.846
2010-07-01	42746.459
2010-10-01	44117.005
2011-01-01	45545.100
2011-04-01	46960.259
2011-07-01	46976.292
2011-10-01	47386.054
2012-01-01	48245.632
2012-04-01	48409.375
2012-07-01	49811.441
2012-10-01	49631.346
2013-01-01	49020.999
2013-04-01	48983.996
2013-07-01	49925.357
2013-10-01	50502.951
2014-01-01	51359.736
2014-04-01	52238.779
2014-07-01	50474.192
2014-10-01	49698.305
2015-01-01	48371.420
2015-04-01	49160.892
2015-07-01	48897.636
2015-10-01	49389.335
2016-01-01	51460.628
2016-04-01	52412.311
2016-07-01	53082.951
2016-10-01	51271.916
2017-01-01	52559.369
2017-04-01	53873.968
2017-07-01	55269.289
2017-10-01	56173.400
2018-01-01	58373.180