Quarter	Billions of US Dollars
2001-10-01	18387.731
2002-01-01	18357.544
2002-04-01	20114.285
2002-07-01	20337.432
2002-10-01	21089.083
2003-01-01	21827.977
2003-04-01	22816.342
2003-07-01	23493.560
2003-10-01	24555.115
2004-01-01	26230.838
2004-04-01	25842.823
2004-07-01	26302.482
2004-10-01	28152.039
2005-01-01	27887.780
2005-04-01	27603.567
2005-07-01	27344.203
2005-10-01	27079.111
2006-01-01	27393.060
2006-04-01	27828.003
2006-07-01	28090.512
2006-10-01	28500.709
2007-01-01	29053.885
2007-04-01	28986.221
2007-07-01	30487.231
2007-10-01	31625.029
2008-01-01	33991.024
2008-04-01	33409.438
2008-07-01	32833.196
2008-10-01	35149.018
2009-01-01	35012.873
2009-04-01	37297.311
2009-07-01	39732.255
2009-10-01	40134.167
2010-01-01	40557.637
2010-04-01	41469.967
2010-07-01	44745.715
2010-10-01	45390.097
2011-01-01	46547.806
2011-04-01	48225.683
2011-07-01	49165.839
2011-10-01	49596.205
2012-01-01	50568.669
2012-04-01	51166.135
2012-07-01	52871.260
2012-10-01	52798.180
2013-01-01	52135.328
2013-04-01	51296.302
2013-07-01	52191.457
2013-10-01	52569.411
2014-01-01	53960.930
2014-04-01	55245.280
2014-07-01	53550.342
2014-10-01	53306.781
2015-01-01	52254.967
2015-04-01	52140.566
2015-07-01	52220.268
2015-10-01	52457.089
2016-01-01	55619.689
2016-04-01	57264.815
2016-07-01	57803.939
2016-10-01	54573.033
2017-01-01	55770.908
2017-04-01	57189.336
2017-07-01	58564.973
2017-10-01	59542.172
2018-01-01	61591.346