Quarter	Billions of US Dollars
1999-01-01	2346.675
1999-04-01	2307.351
1999-07-01	2381.716
1999-10-01	2269.276
2000-01-01	2185.028
2000-04-01	2221.599
2000-07-01	2043.091
2000-10-01	2213.187
2001-01-01	2149.402
2001-04-01	2095.714
2001-07-01	2268.916
2001-10-01	2241.899
2002-01-01	2243.400
2002-04-01	2602.902
2002-07-01	2607.126
2002-10-01	2788.762
2003-01-01	2952.110
2003-04-01	3154.114
2003-07-01	3234.257
2003-10-01	3498.439
2004-01-01	3470.307
2004-04-01	3532.018
2004-07-01	3647.439
2004-10-01	4012.117
2005-01-01	3928.806
2005-04-01	3779.429
2005-07-01	3765.542
2005-10-01	3710.005
2006-01-01	3867.174
2006-04-01	4137.354
2006-07-01	4184.734
2006-10-01	4382.918
2007-01-01	4496.075
2007-04-01	4618.875
2007-07-01	4901.331
2007-10-01	5166.333
2008-01-01	5755.106
2008-04-01	5719.262
2008-07-01	5210.020
2008-10-01	5093.740
2009-01-01	5027.674
2009-04-01	5411.408
2009-07-01	5677.639
2009-10-01	5563.160
2010-01-01	5275.286
2010-04-01	4824.598
2010-07-01	5427.966
2010-10-01	5257.892
2011-01-01	5642.165
2011-04-01	5808.968
2011-07-01	5303.349
2011-10-01	5033.603
2012-01-01	5418.050
2012-04-01	5086.354
2012-07-01	5305.119
2012-10-01	5491.483
2013-01-01	5327.135
2013-04-01	5511.376
2013-07-01	5651.334
2013-10-01	5824.810
2014-01-01	5977.601
2014-04-01	6053.679
2014-07-01	5562.490
2014-10-01	5383.033
2015-01-01	4911.200
2015-04-01	4990.527
2015-07-01	5031.990
2015-10-01	4861.978
2016-01-01	5166.796
2016-04-01	5071.007
2016-07-01	5060.240
2016-10-01	4713.919
2017-01-01	4779.672
2017-04-01	5138.720
2017-07-01	5297.672
2017-10-01	5396.871
2018-01-01	5605.194